Anyone know the answer to this? if so ?

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

What is the reflection image of (5,-3) across the line y = -x?

Prove that 16^4-2^13-4^5 is divisible by 11.