Question

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Answer 1

2 = C

9 = C

13 = C

14 = B

Explanation:

Answer 2

Explanation:

2 Ms. Salgato doesn’t want to spend more than $375 that in symbols can be expressed as
`\leq 375`.

$100 is a constant so it doesn’t multiplies the x. The hour are instead a variable so $40 multiplies the x

so the final answer is

C
`100+40x\leq 375`

9 no less than $455 can expressed as
`\geq 455`

if we solve the inequality
`245+d\geq 455`

we have

`d \geq 210`

so the final answer is A

13

$130 is a constant, while $3 mulplied a variable. No more means
`\leq 190`

we can now write and solve an inequality:

`130+3x\leq 190 \\ 3x\leq 60 \\ x\leq 20`

so the answer is C : 20

14

$9 multiplies a variable, a minimum can be expressed as
`\geq`

so the final answer is

B :
`9h\geq 81`