How can you figure someone age for example

Evelyn was 9 when her brother Victor was born. Which equation tells you how to find Evelyn's age if you know Victor's age?

e=Evelyn's age

v=victor's age

A. e=v+9

B. v=e+9

C. e=v-9

D. e+v=9

Simplify expression 4 (7x+5y)

Solve w/7 > 3 A) w ≤ 21 B) w > - 21 C) w > 21 D) w < - 21

Jabari is power washing houses for a summer job. for every job he charges an initial fee plus $30 for each hour of work. his total fee for 4 - hour job for instance is $170.

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You have 3/4 cups of flour for your cake you need to add 5/6 more cups then you need to divide 2/3 cups for a different recipe solve in the simplest form

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I am very confused on how to figure out if y = 3/4x is proportional?

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At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

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