Answer:
The solution is given below:
Step-by-step explanation:

As we know the value of k and r so the equation will be





Answer:
1.66 pounds
Step-by-step explanation:
4.98 dollars divided by 3 pounds
Multiply the price by (1 + sales tax).
85 x (1+0.07)
85 x 1.07 = 90.95
He will pay $90.95
For this case we must simplify the following expression:

We eliminate the parentheses taking into account that:

We add similar terms taking into account that:
Equal signs are added and the same sign is placed.
Different signs are subtracted and the major sign is placed.

Answer:
