7. A recording studio charges musicians an initial fee of $125 to record an album. Studio time costs an
additional $85 per hour.
Which function represents the total cost in dollars,
C(t), of recording an album as a function of studio
time in t hours?

C = 85t + 125

Step-by-step explanation:

C (cost) = 85 (the cost of each hour) times t (the time spent in hours) + 125 (the initial fee)

Hope this helps! :D

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i