Answer:
the answer = um ok
Step-by-step explanation:
0.5t+12=t+10.50------set the equations equal to eachother, with t being the number of toppings
1.5=0.5t----subtract 0.5t from each side and 10.5
t=3---if there are 3 toppings the prices will be the same
C because the highest and lowest Y values are at -7 and 4.