On one day a babysitter earned $80. Out of her earnings she spent $ 13.80 on tea and snacks, $ 25.50 on food and $4.40 on gas. How much was left over?

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?