Which equation is true when is x=1
A. 3x=3
B. 3x=2
C. 3x=1

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

28 x 12 + 34 = ? it's for a test that if i fail on i will not proceed into the honor roll society i always dreamed of!me! worth 50 !