A.
PEMDAS
Parenthesis always comes first, then exponents, multiplication and division, adding and subtracting
Answer:
A. 360
B. 780
C. 350
Step-by-step explanation:
Times the time by the speed
I assume that you mean: the length is 7cm more than the width, and the perimeter is 74 cm.
If so, we can write down the following system, where l and w represent, respectively, the length and the width:

We can easily solve the second equation:

And finally solve for the length:

Answer:
Negative Correlation
Step-by-step explanation:
Peyton is 28 years old
Justin is 7 years old
Matt is 4 years old