Which relation is a function?
a.
(5, –2), (4, 6), (–3, –2), (0, 4)
b.
(–1, –2), (3, –5), (–1, –5), (2, –2)
c.
(4, 3), (3, 2), (–1, 5), (4, 0)
d.
(–4, –4), (3, –3), (–4, 4), (–3, 3)

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

The diagram shows corresponding lengths in two similar figures. find the area of the smaller figure. a. 14.4 yd2 b. 24 yd2 c. 26.4 yd2 d. 28