Factor out the coefficient of the variable term.

0.75z-6.75

0.75(z-9)

Step-by-step explanation:

Factor out 0.75 and in the parentheses, write the number that when multiplied by 0.75 is 0.75 and 6.75. The numbers from the original equation.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2