Answer:
132°
Step-by-step explanation:
x+48=180
x=180-48=132
20% of 45 is 9. sale price- 9$
20% of 45
20/100 = 0.20 (0.20) (45) = 9
4800 beats an hour
there are 60 minutes in and hour
the heart beats 80 times per minute( that is actually a very high heart rate)
80*60=4800 per hour
300 miles per gallon
