What is 10 - (-19) and 2 - (-7)

Tom bought 7 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now only 25 cards left. how many cards did Tom start with?

Your class collected more than 380 cans of food for the annual food drive. In the first week, 145 cans were collected. How many cans c of food were collected in the second week? Write and solve an inequality.

Determine whether the two expressions are equivalent. If so, tell what property is applied. If not, explain why. 7 · (6 · t) and (7 · 6) · t

Ross wants to cut a 40-foot rope into two pieces so that the length of the first piece divided by the length of the second piece is 2. a. Let x represent the length of the first piece.

1. Fifteen more than half a number is 9. 2. Eight more than four times a number is - 12. 3. Amy has saved $725 for a new guitar and lessons. Her guitar costs $475, and guitar lessons are $25 per hour.

2/w=0.4/0.7 what is w?

2.6 as an improper fraction

The length of a rectangle is 7cm less than twice it's width. If the area is 30 sq. cm, find the dimensions

Heights of 10 year-olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6 inches. Which of the following is true? Roughly 95% of 10 year-olds are between 37 and 73 inches tall.

Express the following as a decimal place75%