Answer:
i think it's the third one
The product of a number and 3 can be represented as 3n (where n = unknown number). Then 6 less than 3n is 3n - 6.
3n - 6 = -18
3n = -12
n = -4
Check:
-4 x 3 = -12
-12 - 6 = -18 (this works!)
We will find the rate of Greg and Josh earning money that is
the amount of money they receive per unit time (hour)
Since the trip is in 3 weeks,
Number of hours Josh worked = 3 weeks * (5 hours/week) = 15
hours
Number of hours Greg worked = 3 weeks * (8 hours/week) = 24
hours
Josh’s rate = $480/15 hrs = $32/hr
Greg’s rate = $480/24 hrs = $20/hr
Therefore
Josh makes $12/hr more than Greg
60 divided by 5 is 12, so one pizza is 12$. then do 9 times 12 and you'll get 108. so 9 pizzas cost 108$.
Um not sure...Absolute value?
