Answer:
Step-by-step explanation:
we know that
using proportion
1) Matches with option 4
2) Matches with option 2
3) Matches with option 3
4) Matches with option 1
A). 4r − 3
There are no like terms.
= 4r − 3
B). x + 7
= x + 7
7 km
2 hours 20 minutes is 2 and 1/3 hours. 3 * 2 and 1/3 = 3 * 7/3 = 7km.