Add 5/12 plus 69/10 as an improper fraction in lowest terms

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

If square root x = -7, then x= -49 true or false