A box contains 2 white ball,3 black ball and 4 red ball in how many ways can3 ball be draw form the box ,if at least one black ball is to be included in the draw?

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the