Which answer is 0.57 written as a percent? a) 0.0057% b) 0.57% c) 57% d) 570% 2) write 987% in decimal form. a) .0987 b) .987 c) 9.87 d) 98.7 3) what is the best estimate of a 20% tip on a $48 haircut? a) $10 b) $15 c) $20 d) $3 4) a television normally sells for $320. this week, it's on sale at 60% off the normal price. what is the sale price? a) $101 b) $128 c) $256 d) $301 5) emily had 75 buttons. she gave 15 buttons to jake. what percent of the buttons did emily give to jake? a) 2% b) 10% c) 15% d) 20%

1) The answer is C. 57%.

To make a decimal a percentage, move the decimal sign to the right twice and put the percentage sign behind it. This makes the correct answer C.

2) The answer is D. 98.7.

To make a percentage a decimal, move the decimal (which is right in front of the percentage sign) to the left twice, and you'll get your answer. This make D the correct answer.

3) The answer is A) $10.

To find the tip, we just divide 20%, also written as 0.20 or 0.2, by 48, and when we do this we get 9.6. Since 9.6 isn't an answer, we round to the nearest whole number, which is 10, and that makes our answer A.

4) The answer is B. $128.

To find the sale price, we divide 60%, also written as 0.60 or 0.6, by 320, and we'll get 192. Next, we subtract 192 from 320, and we'll get 128, meaning our answer is $128.

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15