Please help me with this question! Select the correct answer.
Isabelle is mixing red paint with blue paint to make purple paint. She adds 3/10 of a fluid ounce of red to 11/15 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple. How many fluid ounces of red paint will she need to make 3 fluid ounces of purple paint?
A.
2/5 fluid ounce
B.
11/20 fluid ounce
C.
27/31 fluid ounce
D.
1 13/50 fluid ounces

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Which of the following is the correct ratio for converting kilograms to grams

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.