Answer:
4h^2-6h-7
Step-by-step explanation:

The possible solution is having 30 rolls of wallpaper and 20 can of paints or 30 rolls of wallpaper with 46 can of paint.
<h3>
Inequality</h3>
Inequality is the non equal comparison of two or more numbers and variables.
Let x represent the number of wallpapers and y represent the number of cans.
He needs at least 30 rolls of wallpaper and at least 20 cans of paint. Hence:
x ≥ 30 (1);
y ≥ 20 (2)
Also:
32x + 28y ≤ 2240 (3)
Plotting the 3 equations using geogebra online graphing tool, the possible solution is:
(30, 20), (30, 46)
The possible solution is having 30 rolls of wallpaper and 20 can of paints or 30 rolls of wallpaper with 46 can of paint.
Find out more on Inequality at: brainly.com/question/24372553
Answer:
The answer is B. f(x) = (x − 1)(x − 2)(x + 1)(x + 2)
Step-by-step explanation:
Answer:
(2×1+2)+(2×2+2)+(2×3+2)+(2×4+2)
=28
You can use it 25 times 4 times 25 is 100 100 by 25 is 4