Q and A for the topic: General

put brackets, addition, subtraction, multiplication or division signs to make the numerical expression correct: 6 6 6 6 6=22

put brackets, addition, subtraction, multiplication or division signs to make the numerical expression correct: 6 6 6 6 6=630

A student prepares 500 mL of a sodium chloride (NaCl) solution by dissolving 5.0 M VI = l Na = 22.990 grams of NaCLin water. What is the molarity of the NaCl solution?

You have a 1.5 L solution of hydrochloric acid (HCI) with a molarity of 0.80 M.F many moles of HCl are present in the solution?

Retail price $7.50 discount $2.50 find the discount rate

Cost $30 retail price $40 find the mark up rate

Cost $125 markup $23.75 find the markup rate

Write a expression to represent 2(n+8) What is the final number is the starting number is 7?

Express the repeating decimal as a quotient of two integers. 4.09 (9 is repeating)

Write 0.0000002005 in scientific notation

If you buy a car where you give a down payment of $ 998 and the payment will be $ 465 monthly for 5 ½ years at an interest rate of 8.5% per annum computed monthly. What was the sale price?

n – 9) (n – 5)=

Shows all the steps to solve each exercise. Applies the laws of exponents. (h + 8) (2h + 7) =

$850 at 9% for 6 months find the amount of interest due

6300 at 5% if the interest on each investment is compounded annually find the interest earned during each of the first 2yr. Then find the balance at the end of the second year

The speed of sound is 760 miles an hour. If a plane is traveling at the speed of sound how many miles will it travel in 5 hours?

Bill: $36.50; tip: $6 Find the nearest percent for the tip

Find the total amount spent if the tip is 15% rounded to the nearest quarter on a restaurant bill of $17.85

A music store buys instruments and then sells them for 30% more than they originally paid. if the store buys a guitar for $45 then what will the store sell it for?

If the original price is 95$ and the sale price is 61.75 what is the percent off