How do I decide whether a relation is a function or not?

Item 18 A music company offers a loan to buy a drum set for $1500. The simple interest is 11.8% and the loan will be paid in equal monthly payments for 2 years. What is the monthly payment?

The Mendes family bought a new house 8 years ago for $126,000. The house is now worth $156,000. Assuming a steady rate of growth, what was the yearly rate of appreciation? Round your answer to the nearest tenth of a percent (1.2% etc)

Round off 29.05 to one decimal place.

a rectangle has a width of 3 units. The rectangles length is 5 times it's width. what is the area of the rectangle?

What is the value of the expression - 5 (3+4)

Which expressions are equivalent to - 6Z + (-5.5) + 2.5z + 5y - 3.5? Select all that apply. A. - 3.5z + 5y-9 B. - 9 + 5y + (-3.52) OC. - 9 + 5y + 3.52 OD. 5y + (-3.5z) - 5.5 E. 5y-9-3.52

Solve for w - 2/5+1/2w = - 6/7

Liliana takes four breaths Per 10 seconds during yoga at this rate about how many breaths would Liliana take in two minutes of yoga

Which expressions have the same solution as - 4 (6) ? Check all that apply. -4 ( - 6) 4 ( - 6) 6 ( - 4) -8 (2) 12 ( - 2)

A certain type of bacteria, given a favorable growth medium, doubles in population every day. If you begin with 10 bacteria, how many days will it take for the population to reach 20,000