Answer:
I think it is 50 tell me if it is right
I would use subsitution
y=x-7
sub x-7 for every x
5x+2(x-7)=14
5x+2x-14=14
add 14 to both sides
7x=28
divide both sides by 7
x=4
sub
y=x-7
y=4-7
y=-3
x=4
y=-3
(4,-3)
Answer:
Capital value after 1 year will be equal to $45150
Step-by-step explanation:
We have given principal amount P = $42000
Rate of interest r = 7.5 %
Time t = 1 year
Capital value is given by 
So 

So capital value after 1 year will be equal to $45150
If 12 types only last 4 days, and the rest last an average of 6, then the average amount of days that ALL the flowers wilt would be 5. To find the average, you add 6 and 4 to get 10, and since there is only 2 number we added togehter to get 10, you would divide 10 by 2 to get 5!