Answer:
7.50 a pizza 0.50 for peporonies
Step-by-step explanation:

Do the multiplication both sides,

Arrange the terms to LHS according to their variables,

Factorise this polynomial

So what we notice here is when you're multiplying two numbers you're getting 0 as answer.
So one of them must be 0.
If (x-1) is 0
then x = 1
similarly,
x-6=0
then, x= 6.
So the possible values of x are 1 and 6.
Rudy answered 2 more questions correctly
...........
46x2=92
44x2=88
...........
92-88=4
If 7 minutes is $2.45, then 13 minutes is $4.55 cuz 1 minute is 0.35 cents