AC=AC (reason: reflexive property)
Step-by-step explanation:
Hope it helps you!
For the first problem, a "fifth" means divided by 5, so "four-fifths of b" means

or

Subtract means to take away, so "6 subtracted from" means to "take away 6" or -6
As such, the answer to the problem would be

The rest the problems are also just translating English to math.
Answer:
Exact Form: 17/6
Decimal Form: 2.83
Mixed Number Form: 2 5/6
Step-by-step explanation:
Answer:

Step-by-step explanation:
First we need to find area of the triangle with a base of 4 cm and a height of 5cm, and then multiply that by the length of the prism of 15cm.
The area of the triangle is given by the formula:

where b is the base:
and h is the height: 
thus, in this case we have:

And now, the volume will be the area of the triangle multiplied by the length
of the prism:

Substituting the known values:

The volume in cubic centimeters is 150.