Arden has 15 cards and 3 of those cards are red. What percent of her cards are red? *

Nine more than four times a number is the same as one less than twice the number. find the number?

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.