Answer:
1.

2.

Step-by-step explanation:
Area of triangle=1/2×b×h
=



2. Area of triangle=14




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Answer:

Step-by-step explanation:
Given



Required
Determine the value of r
The value of r can be set up percentage increase formula as follows:

Substitute values in the above equation

Cross Multiply

Convert percentage to decimal


And the value of 


Hence, Cody's current rent is $43.35 monthly
Answer:
30
Step-by-step explanation:
75 times .40 = 30
A) x – 7 = -7(6y + 5)
x – 7 = -42y + -35
x – 7 + 35 = -42y
x + 28 = -42y
y = (1/42)x – 14/21
c) y – 7 = 7(x + 5)
y – 7 = 7x + 35
y = 7x + 42
b) y – 7 = -7(x + 5)
y – 7 = -7x -35
y = -7x – 28
d) y + 7 = 7(x + 5)
y + 7 = 7x + 35
y = 7x + 28