Answer:
a. parallelgram
Step-by-step explanation:
Cara's rate of commission is 12%.
Step-by-step explanation:
Given,
Paycheck = $6500
Salary = $1000
Commission = Paycheck - Salary
Commission = 6500-1000 = $5500
Total sales for the week = $45000
Commission rate = 

Rounding off to nearest whole number.
Commission rate = 12%
Cara's rate of commission is 12%.
Keywords: commission, subtraction
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Find two numbers that multiply to -30 (last term) and add to 7 (middle coefficient)
The two numbers are 10 and -3
10 times -3 = -30
10 plus -3 = 7
Using those two values gets us the two factors (y+10) and (y-3)
Therefore, y^2+7y-30 factors to (y+10)(y-3)
The equation y^2+7y-30 = (y+10)(y-3) is true for all values of y.
Looking at the problem statement, this question states for us to determine the range of the function that is provided in a graph is. Let us first determine what range is.
- Range ⇒ Range is what y-values can be used in the function that is graphed. For example, if a line just goes up and down all the way to negative and positive infinity, then the range would be negative infinity to positive infinity as it includes all of the y-values in it's solutions.
Now moving back to our problem, we can see that we have a vertex at (2, -5) and that the lowest y-values is at y = -5. Therefore the y-values would be anything greater than or equal to -5 and less than infinity because the lines go forever up in the positive-y-direction.
Therefore, the option that would best match the description that we provided would be option B, -5 ≤ y < ∞.