A Andreas dad weighs 91 k.
B Andrea and her dad both weigh 91 k.
Answer:
-7-a
Step-by-step explanation:
2a-3a +5-12
-a - 7
or -7-a
Answer:
5x^2-18x -8
Step-by-step explanation:
Answer:
solo suma todos los valores x+4(3)+(x+x)
en el segundo x+5(2)+x+3(2)
en el tercero x-3+(2x+5)+(2x+5)
y en el cuarto x(3)+(x+4)
Answer:
20
Step-by-step explanation:
The pythagorean theorem states that

So 
You would then do

Because a square root is the opposite of a square.

because 20 * 20 = 400