Answer:
B. 8 hours
Step-by-step explanation:
T=d/r
84/10.5 = 8 hours
Answer:
i think that the answer is 5°
Answer:
Step-by-step explanation:
50 + 30 = 80
Answer:
a = 
Step-by-step explanation:
4a -16 = a - 15
both left and right -a
then
4a - 16 -a = a - 15 -a
then
4a -a -16 = a -a -15
then
3a -16 = -15
both left and right + 16
then
3a -16 + 16 = -15 + 16
then
3a = 1
both left and right ÷3
then
3a ÷ 3 =1 ÷ 3
then
a = 
Answer:
first one it is {all -,7}