Achain saw requires 7 hours of assembly and a wood chipper 3 hours. a maximum of 63 hours of assembly time is available. the profit is $170 on a chain saw and $210 on a chipper. how many of each should be assembled for maximum profit?

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?