Answer:
Zoom it to see well
Step-by-step explanation:
Answer:
second one
Step-by-step explanation:
it is the second one , it has three expression starts with 5
when n=0 :2n+5=2(0)+5=5
n=1 : 2n+5=7
n=2: 2n+5=4+5=9
n=3: 2n+5=11
Answer: 8.4 miles
Step-by-step explanation:
d = rt
Solve for her rate
21 = 5r
r = 21/5
r = 4.2
Solve for if the time is 2 hours and rate (solved previously) is 4.2
d = 4.2*2
d = 8.4
(x+10)(x+3)
x^2+3x+10x+30
x^2+13x+20 *final answer*
The son's age is 31 and the father's age is 61.
2s-3=f
f-s=30
f=61
s=31