X=15
Y=3
2(15)=30
3(3)=9
30+9=39
F-1(x) = (3x + 5) / 3
f-1(3) = (9 + 5) / 3 = 14/3
Answer:
Ruby pays a dollar every 12 messages.
Step-by-step explanation:
It costs Ruby $4 to send 48 text messages. To find the unit rate, you would divide 48 by 4. So the result would lead to 12 messages per dollar.
Just use the division property of equality: divide 60 by -16 and you will get the value of x
Step 1: Put a decimal point at the end of the number: 2445000000.<span>
Step 2: Move the decimal point 9 spaces to the left: </span>2.445000000
Number: 2.445000000 aka 2.445<span>
Exponent: 9
Answer: 2.445 x 109</span>
