Answer:

Step-by-step explanation:
Apply FOIL method: 


Apply minus - plus rules


Simplify
Multiply 

Multiply 

Multiply 

Combine like terms

Multiply 


Answer:12300
Step-by-step explanation:12.3x1000
Answer:
x + 3y = 21
Step-by-step explanation:

Equation of the line: y =mx+ b

Multiply the equation by 3
3y = -x + 21
x + 3y = 21
Answer:
ANSWER: ADC=82
bda = 144
(7x+34)+(9x+46)=144
16x+80=144
16x=64
x=4
9(4)+46=82
adc=82
Step-by-step explanation:
The answer for this question is D because you have 2 full squares and then one half of square so 2 1/2.