Answer:
7y + 14
Step-by-step explanation:
7(y+2) = 7y + 14
Answer:
x = 15.75
Step-by-step explanation:
I'm going to assume you mean solve for x so:

I'm pretty sure the length of the other side is 35 feet.
35+35+10+10=90
Answer:
B. 2.786 x 10 ^ 7
Step-by-step explanation:
For scientific notation you have 1 number to the left of the decimal point and 10 gets raised to the power of the number of decimal places it takes to get that one number.