math
posted by karen .
anna bought 3 types of fruit for a fruit salad. She paid three times as much for buleberries as for pears and $2.50 less for strawberries than for blueberries.
A) define a variable and write algebraic expressions to represent the amount she spent on each type of fruit.
B) if the total cost was $ 13.25 how much did anna spend on each type of fruit?
Please help me in this problem????

A. $X for pears.
$3x for Blueberries.
$(3x2.50) For strawberries.
B. X + 3x + (3x2.50) = $13.25.
7x  2.50 = 13.25
7x = 15.75
X = $2.25.
3x = 3*2.25 = $6.75.
3x2.50 = 3*2.25  2.50 = $4.25. 
johanna has a cellphone plan that has a monthly charge plus a per text fee. In October , she sent 45 texts and her bill $37.25. In November, she sent 118 texts and her bill was $40.90
write the yintercept in coordinate form.Explain what the yintercept represents in the problem situations please help