So do 81 divided by 4 we know that 80 divided by 4 is 20 so it would be 20 and some change
Answer:
1) b= -20
Step-by-step explanation:
You bring the variable you want to find to one side by either bringing over the second term to the other side of the equation and change its sign or if it's a fraction you multiply both sides to remove the denominator and then solve
It is x^2-2x-9 since u just subtract both equations
Answer:
920ft^2
Step-by-step explanation:
20*17=340
15*20=300
60*2=120
8*20=160
340+300+120+160= 920 ft^2