Use the greedy algorithm to make change using quarters, dimes and pennies (but no nickels) for each of the amounts given. For which of these amounts does the greedy algorithm use the fewest coins of these denominations possible?
a) 87 cents.
b) 49 cents.
c) 99 cents.
d) 33 cents

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth