Ahang glider flew to an altitude of 10,000 feet. fifteen minutes later, its altitude was 7,000 feet. what was the average change in elevation per minute?

You can use slope formula 
think of it as a graph initially you start at point (0,10,000)
then you move to (15 , 7,000)
10,000 -7,000 =3,000
15 - 0 = 15
so 3,000/15 is...
200 ft per minute
since you are moving down it is a negative slope -200ft per min

yes

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

For me i think it'll land on blue