I'll mark brainliest. Find the measure of ∠7

Given:
∠1 is a right angle
∠3 = 37°
∠8 = 62°

Options:
A) 53°

B) 65°

C) 105°

D) 127°

E) 245°

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.