Answer:
1. 5r-8=r
2.3x-4=120
3. x-20=27
4. 3x+10=46
5. 2x+12=16
6. 8+4x=56
7. 16/x=2
8. x+6=24
9. 5x+19=67
10. 6-4x=38
Step-by-step explanation:
Answer:
French test
Step-by-step explanation:
We first calculate the scores as percentages:
#Spanish test:

#For the French test, her percentage is:

Since, 90.48$>84.38%, Claire did better in the French test.
Answer:
6x = -60
Step-by-step explanation:
-3x - 7 = 23
-3x = 30
x = -10
6(-10) = -60
Answer: Four-thirdsπ(6)³
Step-by-step explanation: The formula for the volume of a sphere is attached in the image down below.
Notice that two of the options listed have <em>three-fourths</em> but we use <em>four-thirds </em>to find the volume of a sphere. This means that we can eliminate the 1st and the 3rd option.
Now, we will multiply that by π and then by the radius cubed which is also written as 6³. This means that our answer would be the second option.