The sum of the first 10 terms of an AP is 142 and the 15th term is 38. Find the common
difference and the sum of the first 21 terms.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

This graph shows a portion of an odd function. use the graph to complete the table of values. x f(x) −2 −3 −4 −6

The taxi fare in gotham city is $2.40 for the first 1 2 12 mile and additional mileage charged at the rate $0.20 for each additional 0.1 mile. you plan to give the driver a $2 tip. how many miles can you ride for $10?