28/21 = 42/x solve for x

A: 14

B: 18 2/3

C: 31 1/2

D: 56

i cant figure out what it is, and im slightly confused

You pay $620 to rent a hotel room for 4 weeks. The total cost includes an initial deposit plus a weekly fee of $125 Write an equation that represents your total cost y (in dollars) after x weeks.

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If Tina talks fewer than 100 minutes a month she does not have to pay anything? True or false

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29, 19, and 29 triangle as acute, right, or obtuse.

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