A) The cost of 1 flower is $0.35
Multiply the number of flowers by 0.35 to get the total cost:
4 x 0.35 = $1.40
5 x 0.35 = $1.75
6 x 0.35 = $2.10
B)
Let the number of flowers = X
Multiply the cost of a flower by the number of flowers to get 0.35X
Now you need that to equal the amount she spends so you have:
EQUATION: 0.35X = 14
To find X , divide both sides by 0.35:
X = 14.00 / 0.35
X = 40 flowers.