Name the property that justifies each statement : a) (7+5)-2 = 7+(5-2) b) 4(-3)= (-3) (4) c) 6 ( 2+5 ) = 6.2+6.5 d) 6 . 1/6 = 1

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

b. astronomers

so, converting firstly the mixed fractions to improper fractions and then "adding".