Due in 5m! and 30 points

simplify: 9(a + b) + 4(3a + 2b)
a) 13a 13b
b) 21a + 17b
c) 21a + 2b
d) 38ab

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

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?