Lane has scores of 75, 80, 65, and 95 on her calculus exams. She has set the goal of making at least an 80 of her report card in this class. What is the least she can make on the last exam in order to meet her goal?

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Solve the triangle. a = 21°, c = 105°, c = 5

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.