Answer:
D
Step-by-step explanation:
D is not a function because it has repeated x values. If you do the vertical line test, it intersects the graph multiple times. Hence, it is not a function.
The area is 5 cm^2 of the pyramid
Answer:
25%
Step-by-step explanation:
Mrs. Loar has to grade 75 papers. Mrs. Holt is helping her grade. Mrs. Loar graded 60 papers and Mrs. Holt graded the rest.
Hence, the amount of papers Mrs Holy graded is = 75 - 60
= 15 papers
What percent of the papers did Mrs. Holt grade?
This is calculated as:
15/60 × 100 = 25%
Hence, Mrs Holy graded 25% of the papers
Simplest form would be 3x+18
3(4x+6)-9x
12x+18-9x
-9x
3x+18