Sally and martha had the same number postcards. after sally sold 18 of her postcards, martha had 4 times as many postcards as sally. how many postcards did each girl have to begin with?

Zach is 3 years older than twice his sister Maya's age. Let m represent Maya's age and z represent Zach's age. Which equation represents Zach's age? z = 2m z = 3m + 2 z = 2m + 3 z = m + 3

80 percent of what games is 32 games

Find the next three terms of the sequence 3, 9, 27, 81,

How many hundredths in 45.972

Which expression is equivalent to - 15x + 6

Chang rented a truck for one day. There was a base fee of $17.95 , and there was an additional charge of 85 cents for each mile driven. Chang had to pay $211.75 when he returned the truck. For how many miles did he drive the truck?

Solve 2^ (3x-4) = 5 round to the nearest ten-thousandth

The area of a rectangular playground enclosure at Happy Times Nursery School is 600 sq. Meters. The length is 25 meters longer than the width. Find the dimensions of the playground

349 rounded to the nearest tenth

Can somebody answer my question, I asked one like 1h and 30min ago and no one has answered!