How can i do substitution while multiplying

each child in the class has a desk and there are none left over ... if each desk sits 2 people, and there are 10 desks in the classroom, how many kids are in the class?

Write each decimal as a 8.04 mixed number

What expression is equivalent to 12/25

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. Shania found the range of her scores. Which type of measure did she find?

Weight on mars (Y) varies directly as the weight on earth X a piece of equipment weighs 150 pounds on earth and 50 pounds on Mars what is an equation that would represent this direct variation if another piece of equipment weighs 60 pounds on earth

Which sentence correctly forms the plural of the number 5? A. Jasmine's house number has three 5s and a 1. B. Jasmine's house number has three 5s' and a 1. C. Jasmine's house number has three 5's and a 1.

You toss a coin and roll a number cube. Find P (heads and an even number)

Of the original 56 signers of the declaration of independence four of them are present in North Carolina if you selected one sign randomly how likely is it that he represent in North Carolina

Michelle built a fence around her square garden. If Michelle used 72 yards of fencing to enclose her garden, what is the length of each side? 12 yards 16 yards 18 yards 36 yards

Lisa went on a 52km hike. she divided the distance traveled evenly over 4 days. how many meter did lisa walk each day