Maria earned $126 in simple interest from her savings account. If she invested $450 for 7 years, what was the interest rate? 4%

4.5%

3.5%

5%

How can you tell when x and y are not directly proportional?

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose