1) When subtracting integers, such as, a - b, you can use the additive inverse to write subtraction as an
equivalent addition expression.
Subtracting b is the same as adding the opposite of b.
a - b = a + (-5)
Drag the points on the number line to explore.

answer:

your answer is: c. 196 7/8 in^3.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13