Problem 18 is the question. i need to know the answer.

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8