When a number, a, is first multiplied by 4, then subtracted from 68, the result obtained is three times the sum of a and 4. • Find the value of the square of a.

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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?