Iwill mark brainlest
part2 asap

q4

on pictuers

q5

on pictuers

the last 2 are for q5 the 3 are for q4

look for part 1 on my profile

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

Lines f and g are cut by the transversal d. the measure of 1 = 2x + 35 and the measure of 8 = 10x - 85. what value of x will show that lines f and g are parallel? a. 19 b. 26 c. 18 d. 15