Answer:

Step-by-step explanation:
hey there!!!
we know already that the area of a triangle is given as

where b= base
and h= heigth
Given that the height is 5 times more than twice it base
let h= 2b+5
Now we substitute h=2b+5 in the area of the triangle


Answer:
The answer is B
Step-by-step explanation:
C. 6 pens for $6.42
Divide to find the number for one pen. then multiply
Answer: x^2+2x+1
Step-by-step explanation:
Answer:
T and R
Step-by-step explanation:
Variables are letters that are a quantity not known yet