9514 1404 393
Answer:
10
Step-by-step explanation:
After spending $8, Kyle had $20 left to buy $2 ride tickets. He could buy ...
$20/$2 = 10 . . . tickets
__
An equation for the total Kyle spent is ...
total spent = (entry fee) + (ride cost) × (number of rides)
28 = 8 + 2n . . . . fill in the known values
20 = 2n . . . . . . . subtract 8
10 = n . . . . . . . . . divide by 2
Kyle bought 10 ride tickets.
When exponents are separated by a parenthesis it means you need to add them. Because the parenthesis is around the entire number then you raise everything inside the parenthesis to the outside exponent. Then anything raised by 0 as an exponent is automatically 1.
You think of this visually as 3a*3a*3a= 27a^9 is your answer
The graph would be a parabola with vertex (0, 1)