Logx + Logx(x+3)=2log(x+1)
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Step-by-step explanation:

Logx + Log(x+3)=2log(x+1)

Log x(x+3) = Log (x+1)²

x(x+3)=(x+1)²

x²+3x = x²+2x+1

delete x², we find

3x = 2x+1

3x-2x = 1

x = 1

c. side angle side. u shares the same sides

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)