Find two numbers that multiply the to -56 and add up to -1

Can you me find the missing length. i attached an image.

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Complete the frequency table: method of travel to school walk/bike bus car row totals under age 15 60 165 age 15 and above 65 195 column totals 152 110 98 360 what percentage of students under age 15 travel to school by car? round to the nearest whole percent.