Just subsitute 8 for n
1/2(8)^2-1/2(8)
1/2(64)-4
32-4
28
D
Answer:
$25(h) + $130
Step-by-step explanation:
Answer:
1. 0.35 miles per minute
2. 5.25 miles
Step-by-step explanation:
1. speed is 21 miles per hour
speed per minute = 21/60 = 0.35 miles per minute
2. distance covered in 15 minutes = 15*0.35
= 5.25miles
Answer:
60
Step-by-step explanation:
calculated it with scientific calculator
