Can someone help me please

A

Step-by-step explanation:

If n is odd for a negative number, the answer will always be negative and if it is even then it will be positive. This only applies to the ones in parentheses.

Example:

-2(-2)(-2)

4(-2) = -8

-2(-2)(-2)(-2)

4(-2)(-2)

-8(-2) = 16

P.S Would you mind helping me on a question I asked? Hopefully you know how to answer it,

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this