Hey there is no question for me to look at?
Answer:
The answer to number 3 would be 6 on the number line, open circle, and then a line dashed to 42, and 4 on the number line, closed circle, and a closed line to 7.
The answer to number 4 would be -8 on the number line, open circle, and then a line dashed to 2, and 9, open circle closed line to 81.
P = -23 + 0.13y
For y = 350:
p = -23 + 0.13(350) = -23 + 45.5 = 22.5
For y = 400:
p = -23 + 0.13(400) = -23 + 52 = 29
For y = 450:
p = -23 + 0.13(450) = -23 + 58.5 = 35.5
$35 is your answer, just do 25(0.40) which gives you 10 so add that to your original 25+10=35
