Simplify each expression and match them with the correct answer. (13x2+11x−2x4)+(−13x2−3x−6x4)

(−x4+13x5+6x3)+(6x3+5x5+7x4)

(12x5−6x−10x3)−(10x−2x5−14x4)

(7−13x3−11x)−(2x3+8−4x5)

(3x5+8x3−10x2)−(−12x5+4x3+14x2)

probability for j is 1/4

while

a is 1/6

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours