Answer:

Step-by-step explanation:
we are given
the sum,common difference and nth term of a geometric sequence
we want to figure out the first term
recall geometric sequence

we are given that
thus substitute:

to figure out
we need to figure out the equation
simplify denominator:

simplify square:

simplify substraction:

simplify complex fraction:

calculate reciprocal:

reduce fraction:

multiply both sides by 4/7:

reduce fraction:

simplify multiplication:

hence,

Answer: 7 hours left!
Step-by-step explanation:
She had used up 12 hours and 45 minutes. 7 hours and 15 minutes left, but if you're including the minutes, then it's 7 hours and 15 minutes. Good luck! :D
I think it’s 5 because I think it’s 6
Answer: For number 1 tell Andre no.
Step-by-step explanation: This is because he wants to make a scaled copy of Jada's drawing but by turning 4 into 8 by adding, it will create consistences to the point the best way to scale would be to multiply. So, Tell Andre that if he wants 4 to be 8, he should multiply instead of adding. Very epic!