Please answer this (ignore the s) thaannnkkksss ill mark as brainliest to the first person :)

a) 7

b) 13 , -13

Step-by-step explanation:

a) 6×6×6×6×6×6×6 = 6ˣ

Expressing it in terms of power

6⁷ = 6ˣ

Comparing both sides, we get

x = 7

b) y² = 169

Taking square root on both sides

y = ±13

So, Either

y = 13 OR y = -13

the two may have that, even a breakdown is probably offered

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5