I have many questions. Answer them ALL please

What number is 72% of 15?
42% of 18 is what number?
12 is what percent of 24?
What number is 118% of 206?
200% of 40 is what number?
What number is 50% of 36?
88% of 60 is what number?

1. 10.8

2. 7.56

3. 243.08

4. 40

5. 18

6. 52.8

Step-by-step explanation:

Question 1:

Covert the percent to a decimal: 72% / 100 = 0.72

Multiply that by the number to get the percent.

0.72 x 15 = 10.8

So, 72% of 15 is 10.8

Question 2:

The same concept applies for the rest of the questions.

0.42 x 18 = 7.56

Question 3:

1.18 x 206 = 243.08

Question 4:

2.00 x 40 = 80

Question 5:

0.50 x 36 = 18

Question 6:

0.88 x 60 = 52.8

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

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step-by-step explanation: