Answer:

Step-by-step explanation:
Given:

Solution:
Applying Distributive property,we obtain
Simplifying using PEMDAS:
Done!
-7 is the missing exponent
Average speed = total miles driven / total driving time
average speed = (150 + 100) / (3 + 1 1/2) =
250 / (4 1/2) =
250 / (9/2) =
250 * 2/9 =
500 / 9 = 55.55 mph
Answer:
T=4B+10C
Step-by-step explanation:
for every bag there are 4 doughnuts
for every carton there are 10 doughnuts