I’m pretty sure it’s 370 bc
1 and a half hours is 80+40 (40 is half of 80)
and 2 and a half hours, so 100 for each hour.
100+100+50= 250
250+120=370!!
answer : 370 kilometers per hour
2 + 4x + 5 = 0
4x + 2 + 5 = 0
4x + 7 = 0
4x = 0 - 7
4x = -7
x = <u> </u><u>-7</u><u> </u> ANSWER
4
<h3>PLEASE MARK ME AS BRAINLIEST </h3>
Answer:

Step-by-step explanation:
Using foil method, Multiply the first term

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7


Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis


Then multiply the last term (-4 and 7).

Combine it you have

which simplify to
