The usual tip to leave in a restaurant is 20% of the total bill. If the bill is $62.05, about how much tip should be left?

A:$6

B:$9

C:$12

D:15

Ben bowled 124 and 188 in his first two games. What must he bowl in his third game to have an average of at least 160 ?

For v^n = z, if z = 1, then v is an nth root of unity. True or False?

Does 4/7, 24/35 form a proportion

In a hybrid corn research project, 150 seeds were planted, and 110 of them germinated. Find the empirical probability that any particular seed of this type will germinate.

Ben adopted 2 cats and 3 dogs. He spent a total of $455. If each dog cost him $82, how much did one cat cost him?

15%of $30 as a decimal

The ordered pairs model an exponential function, where j is the function name and e is the input variable. { (1, 10), (2, 50), (3, 250), (4, 1250) } What is the function equation in sequence notation?

Simply and reduce to lowest terms a + [a + b - a - (2a - b) ]

What percentage of a data set is represented as Q1?

Danielle can solve 4 problems in 12 minutes. At this rate, how many can she do in 18 minutes?