Answer:
8r+3r
Step-by-step explanation:
1. EXPONENTS----- do 4r to the 2nd and you get 16r
now you have 16r-8r+3
2.COMBINE LIKE TERMS------ 16r-8r and you get 8r
now you have 8r+3
3.8r+3
its 50 points but still answer is a
Answer: a
There are 160,934.4cm in a mile.
1ft.= 30.48cm
1 mile= 5280ft.
5280tf.(30.48cm)= 160,934.4cm
