1.) if 60% of a number is 18, what is 90%of the number?
a.)3
b.)16
c.)27
d.)30
2. taryn's grandma took her family out to dinner. if the dinner was $74 and taryan's dinner was 20% of the bill, how much was taryn's dinner?
a.$6.80
b.$7.20
c.$9.50
d.$14.80

Solve 2x+y=3 x+y=5 in substitution method

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class