for her vacation mrs. andrews bought $300 worth of traveler's checks in $10 and $20 denominations. if she has 22 travelers checks in all, how many of each denomination does she have?

let x represent the number of $10 traveler's checks she has. which expression represents the value of the $20 traveler's checks she has?

The table above shows approximate conversions from gallons to liters. what is the value of x?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?