3x-13=305
3x=305+13
3x=318
(3x)÷3=318÷3
x=106
check.. (3×106)-13=305
318-13=305
305=305
The mean and median can be calculated for quantitative data only.
To square means to multiply something by itself. A variable is a letter such as x. So a squared variable=x×x=x^2.
I hope that helped.
18 divided by (-9) equals -2.
Answer is 12240 watts of power that a 12 square meter solar panel absorb.
