Answer:
-6.3
Step-by-step explanation:
7/10 X -9/1 = -63/10 = -6.3
2b^2. This is because you have a positive a^2 and a negative so they cross it one another so it just leaves the b’s.
In total 660 rolls were made in all
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Since you can earn 28 dollars by washing 7 cars, and you want to find the amount money you can make by washing 6 cars.

First, you should find the amount of money you can make by washing 1 car (unit rate).

To get from 7 to 1, you have to divide 7 by 7; 7 ÷ 7 = 1.
Do the same thing to the numerator; 28 ÷ 7 = 4.
Now you know how much you make by washing 1 car, you need to find how much you make by washing 6 cars.

To get from 1 to 6, you multiply by 6. 1 times 6 equals 6.
Now do the same thing to the numerator; 4 × 6 = 24.
You can earn 24 dollars by washing 6 cars.
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I have no idea tbhhhhhhhhhhhh