Answer:
$2.33 per notebook
Step-by-step explanation:
$6.99 /3 notebooks
$2.33 per notebook
Answer:
1. is 25
2. I think this one is 25 too?
Step-by-step explanation:
im working on the second
We have two right triangles and three different rectangles.
The formula of an area of a right triangle:

l₁, l₂ - legs
We have l₁ = 20cm and l₂ = 21cm. Substitute:

The formula of an area of a rectangle:

l - length
w - width
We have:
rectangle #1: l = 22cm, w = 29cm

rectangle #2: l = 22cm, w = 21cm

rectangle #3: l = 22cm, w = 20cm

The total Surface Area of the triangular prism:
