Somebody help me please

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

What is the binomial expansion of (2x-3)^5