Answer d because the y intercept is 3 and its a positive slope
30 and 13
x-y=17 and x+y=43
x=17+y and x=43-y, so 17+y=43-y
so y=13
43-13=30, so x=30 and y=13
The ratio of flowers to bouquets is
64:8
With 80 flowers, the ratio would be
80:x
so...
64:8 divide each by 8 to get 8:1
multiply each by 10 to get
80:10
10 bouquets
7 is the prime factor of 210
