Hanna's restaurant sells burrito bowls. The amount charged for a burrito bowl(b) is based on the cost for a plain taco plus an additional charge for each topping (t) as shown in the equation

B(t) = 0.25t +6
(A) If bill ordered a burrito bowl with 4 toppings how much would it cost.

(B) if Paul spent 7.50 how many toppings did he order