What is an Expression equivalent to m+m+m+m that is a product of a coefficient and a variable?

Can u guys do this ratio question. this is extremely urgent a tap is leaking water at a rage of 1l every 8 hours. how long will it take for the tap to leak a total of 300ml?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent