What input and output have to be removed to make the relation a function?: {(–9, –8), (–8, 4), (0, –2), (4, 8), (0, 8), (1, 2)}

(0,8)
(4,8)
(1,2)
(-9,-8)

If eh = hg and hg=16, find the diameter of k

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.