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Answer:
choice 1) $21.90
Step-by-step explanation:
30% of $72.99 = 0.3(72.99) = $21.90
17 boys, 21 girls
ratio is : 17:21 or 17/21
(2x-2)+(15x+29)=180
17x+27=180
17x=180-27
17x=153
x=153/17 = 9
Answer is D
Hope you understand this! :DPart a)
section A<span><span>f<span>avg</span></span>=<span><span>4(2<span>)2</span>−4(2<span>)1</span></span><span>2−1</span></span>=8</span>section B <span><span>f<span>avg</span></span>=<span><span>4(2<span>)4</span>−4(2<span>)3</span></span><span>4−3</span></span>=32</span>
Part b)
The rate of change is greater between x = 3 and x = 4 than between x = 2 and x =1 because an exponential function's rate of change is increasing, unlike a linear function which has a constant rate of change.
