Please help me in these 2 questions ASAP! Thanks a lot!

see explanation

Step-by-step explanation:

12

The explicit formula for a geometric sequence is

= a₁

where a₁ is the first term and r the common ratio

Here a₁ = - 1 and r = = = 5 , then

= -

13

Using the explicit formula for a geometric sequence

= a₁

where a₁ is the first term and r the common ratio

Here a₁ = - 48 and r = = = - 2 , then

a₁₀ = - 48 × = - 48 × - 512 = 24576

me

step-by-step explanation:

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3