My problem went from 10a = 50 to 10a / 10 = 50 / 10. What step is this?

Step-by-step explanation:

= ( Division property of equality )

or

10a × = 50 × ( Multiplication property of equality )

(It depends of the options you have in the answer choices)

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7  

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.