Answer:
18.9c - 11.2d + 9.3f
Step-by-step explanation:
<u>First, write the equation as adding all the parentheses together like so:</u>
(9.7c - 1.9d) + (9.2c + 1.1f) + (8.2f - 9.3d)
<u>Remove the parentheses:</u>
9.7c - 1.9d + 9.2c + 1.1f + 8.2f - 9.3d
<u>Collect like terms (9.7c and + 9.2c):</u>
18.9c - 1.9d + 1.1f + 8.2f - 9.3d
<u>Collect like terms again (1.9d and - 9.3d):</u>
18.9c - 11.2d + 1.1f + 8.2f
<u>Collect like terms again (1.1f + 8.2f)</u>
18.9c - 11.2d + 9.3f
Hope this helped!
Answer:
51.2
Step-by-step explanation:

15x = 120
x = 8
so now we know that 2 sides of the bigger triangle are 24 and 8
now

96 = 5x
x = 19.2
19.2 + 24 + 8
Start off by stating your facts. You have a maximum of $8.75. We know that each quarter is 25 cents so we multiply 25x26 equaling 650. Yet we need a decimal so it would be $6.50. Each nickel is worth 5 cents so then you would minus $8.75 and $6.50 getting us to $2.25. Now divide it by 5 cents and you should get 45 nickels. You can also do this by stating that 10 nickels is 50 cents and go until you get 45
You need to find the mass and the volume first to be able to figure out the density