Answer:
(a x 4)+(a x 3)=7a
Step-by-step explanation:
(a x 4)+(a x 3)= 4a+3a
(a x 4)+(a x 3)=7a
or does your question means something else??
Answer:
Sales tax is $4.20
Step-by-step explanation:
70*6/100=4.2
Answer:
10 miles per hour
Step-by-step explanation:
speed= distance/time
30/3
=10
2x - 10 = 30
2x = 40
x = 20
Answer:
Balance = $124.53 – $57.49 + $103.49 = $170.53
Step-by-step explanation:
