Step-by-step explanation:
1 hour 50 minutes = 110 mins
1 1/2 hours = 90 mins
add all these:
110
90
85
55
35
when you add all these you get 375
every hour has 60 minutes
375 ÷ 60 = 6.15
if he starts at 9 am and he cleans for 6.15 hours he will be finished by 3:15pm.
Answer:
6,561
Step-by-step explanation:
(-9)^4 = -9*-9*-9*-9= 6,561
f(x) + g(x) = 5x - 3 - 2x + 7
= 3x + 4
Hope this helps! If you have any questions, feel free to ask.
I believe the answer would be B, good luck
Answer:
i think its 1.5 im not sure tho 1.5 sounds the best
Step-by-step explanation: