E represents as the exponent of 10
Answer: 
Step-by-step explanation:
1. You must apply the Distributive property. You need to remember the product property of exponents: If you multiply powers with the same base, you must add the exponents. Them you have:

2. Now, you must add the like terms. Then, you obtain the following result:

1. Since it's increased by 40% it would be 140%
2. It would be $294
40 x 0.08875 = 3.55
40 + 3.55 = 43.55
the sum is $43.55