Question

Helppppp on alllll plz

Answer 1

a. $150

b. 150+20x
`\geq`630

20x
`\geq`480

x
`\geq`24

c. 150+20x
`\geq`750

20x
`\geq`600

x
`\geq`30

d. 150+20x
`\leq`950

20x
`\leq`800

x
`\leq`40

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