20% of a number is 64

what is 50% of the number?

explain how you worked this out

How many mL of 75% alcohol should be mixed with 10% of 1000 cc alcohol to prepare 30% of 500 mL alcohol solution? a. 346.16 mL b. 234.43 mL c. 153.84 mL d. 121.12 mL e.

He ratio of Evan's red toy cars to blue toy cars is 3 : 4. Evan has 12 red toy cars. How many blue toy cars does Evan have? A) 9 B) 12 C) 13 D) 16

you just bought 4 bags of chips and 3 cans of soda and paid $9.75. As it is being bagged, you notice one bag of chips has expired. Instead of choosing replacements, you decide to get a refund. You get $2.75 back.

What is the mean? $5.25, $3.50, $4.50, $4.00, $3.50

What is the proportion of 7/5=k/18

Alice worked for six hours and earned $29.88. How much did she make per hour? A) $4.30 B) $4.98 C) $5.15 D) $179.28

Which expression is equivalent to 4/5 X 1/3? 1. 4/3 X 5/1 2. 4/5 divided by 1/3 3. 4/5 divided by 3/1

Describe and correct the error in writing 39/40 as a percent 39/40 = 0.975 = 9.75/100=9.75%

If a figure is a square then it is a regular quadrilateral is this true or false

A Product What is the product of 4.01 x 10-5 and 2.56 x108?