-x^2 - 2x + 15 in vertex form is -(x^2 + 2x - 15) = -(x^2 + 2x + 1 - 16) = -(x + 1)^2 + 16
Therefore, domain is all real numbers and range is {y|y ≤ 16}.
You would do for pens
22 x 1.15 =25.30
And for markets
15 x 2.05 = 30.75
And since you are trying to find how much he spent in all you would add the two sums
25.30 + 30.75 = 56.05
Answer:
nope
Step-by-step explanation:
3x + 1.50y = 39
12 Roses 2 Carnations
3(12) + 1.50(2) = 39
36 + 3 = 39
39=39
Getting 3 wrong will make a 70%, so only one way I can see it
