Answer:
C) 21
Step-by-step explanation:
a² + 20² = 29² Use Pythagorean Theorem to solve for a
a² + 400 = 841 Solve for the exponents
- 400 - 400 Subtract 400 from both sides
a² = 441 Take the square root of both sides
a = 21
Answer: 
Step-by-step explanation:
First you put it in to y= mx+b form.

Then you subtract 34 from both sides

Then you divide 8 from both sides
Leaving you with

$5 per Hour because the number keeps changing 5 dollars the first hour 10 the next... 15, 20... the number keeps climbing.
if there are 2 rows then each row will have 78 members