Hello, Marymack!
We know that in a geometric sequence defined by

and

, the sum can be calculated the following way:
Answer:
60
Step-by-step explanation:
9 ÷ 15 = 0.6
Move decimal 2 places 0.6 -> 60
Without resorting to L'Hopitâl's rule,

With the rule, we get the same result:

Answer:
x + y=24
x=24-y = 3x+5y=100
3(24-y)+5y=100
72-3y+5y=100
72+2y=100
2y=28
y=14, since x=24-y
x=10
So there are 10 3-point questions and 14 5-point questions.
Answer:
3.472x = 4
Step-by-step explanation:
srry if im wrong, but I tried and this question is hard