The way to find the area of a triangle is A=

if the base is 3 feet longer then the height we can write it like this B=H+3
now we can add it to our area equation
20=

20=

40=

+3H
10

=

h=3.2ft
A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1
Answer:
-94
Step-by-step explanation:
t² + 21t - 56
(-2)² + 21(-2) - 56
4 - 42 - 56
-38 - 56
-94
Best of Luck!