A. Average rate of change for x=1 to 2: 4(2²)-4(2)=16-8=8; from x=3 to 4: 4(2⁴)-4(2³)=64-32=32.
b. Section b is 32/8=4 times greater. As the exponent of 2 increases, the gaps between consecutive powers of 2 gets wider and therefore the rate of change is greater.
It is multiplication? If it is, the answer is 6/8. Simplified it is 3/4.
Multiply dollars / unit * units. It is actually a useful thing to know. Many thing are done using the tools this question requires.

Steve takes home 308.56 dollars. The answer is B.
Answer:
Find the value of x and y in coordinate form, that'll be the point of intersection.
Question 1

Therefore, points of intersection are two
Answer: <u> </u><u>(</u><u>3</u><u>,</u><u> </u><u>4</u><u>)</u><u> </u><u>and</u><u> </u><u>(</u><u>1</u><u>,</u><u> </u><u>2</u><u>)</u>
Question 2:
Following the steps as in question 1

Answer: <u>(2, 0)</u>
Answer:
80kg
Step-by-step explanation:
100 + 10 = 110% (Percentage of gained weight)
110% = 88000
1% = 88000 ÷ 110 = 800
100% = 800 x 100 = 80000