Y = 7x + 12.....x = number of tickets and y = total cost
and there are 4 tickets ordered (Frank and 3 friends)...so x = 4
y = 7(4) + 12
y = 28 + 12
y = 40 <=== so he paid 40 bucks for them
Answer:
don't know don't care
Step-by-step explanation:
Answer:
D. -$15
Step-by-step explanation:
Because it changes by $-3 each day, it will change by 5*-3 = $-15 in five days.
Here's the relevant formula:
1 - r^n
nth partial sum = a* ------------
1 - r
1 - r^25
Here, the 25th partial sum is 177147 *-------------
1 - r
Unfortunately, you haven't yet shared the value of the common ratio. Find that value and substitute it for r in the above expression.
Answer:
Step-by-step explanation:
2x²-3=47
2x²=47+3
x²=50/2=25
x=±√25=±5