The total number of hoagies sold is equal to the sum of Italian hoagies and roast beef hoagies. So,
42 + 53 = 95
Thus, the ratio is 42 : 95
Answer:
<h3> Yes, but only if a=0 or b=0</h3>
Step-by-step explanation:

Number of bricks = 350
Cost of 1 brick = 45 p
Cost of 350 bricks = 350 × 45 p = 15750 p