(25000-f)(.03)+.05f=1100
750-.03f+.05f=1100
750+.02f=1100
.02f=350
f=$17500
So Mary invested $17500 @ 5% and 7500 at 3% to earn $1100 in interest.
When there is a multiplication involving exponents, we need to evaluate the numbers and each variables separately. In this case, we have 5 and 4 as the numbers, and w and h for the variables.
When we multiply 5 and 4 we get:

For w, we have

,

,

. While we are multiplying the w's, we need to add the exponents together to get the final answer:

For h's, there are

,

,

. When we apply the same thing to h's, we get

For the final step, we need to write all of these together:
Answer:
Step-by-step explanation:
(x+4)² + y² = 1.5²
1 hectogram = 100 grams
17.2 hectogram = 17.2 * 100 grams = 1720 grams.
17.2 hg = 1720 g
Your final answer is 1720 grams.
Jose is right
Evan's last calculation should have been 2 (-1/8) because 6 - 7 = -1