Answer:
Step-by-step explanation:
1) Price of 8 pack of toothbrushes = $ 18.12
Price he paid after using coupon = 18.12 - 3 = $ 15.12
Unit rate = Price he paid ÷ number of toothbrushes
= 15.12 ÷ 8
= $ 1.89
2) 0.5 hours = 30 minutes
Duration of guitar class on Monday = 30 minutes
Duration of guitar class on Tuesday = 1.5 hours = 1 hr 30 min
Duration of guitar class on Thursday = 2 hrs
Total duration = 30 min + 1hr 30 min + 2 hrs
= 4 hrs
Amount paid for 4 hrs = $ 180
Rate per hour = 180 ÷ 4
= $ 45
Bro its 22 hours because it really is write im pretty smart now answer my question
Answer:
2(x-3) = 8
Step-by-step explanation:
first it says 'difference of a number and 3' so that equals to (x-3), we use 'x' for the variable for the unknown number
next it says 'twice', so two times which equals 2(x-3)
last it says 'is 8', which means 'equals' so "2(x-3) = 8"
