Eric practiced piano and guitar for a total of 8 hours this week he practice the piano for 1/4 of the time how many hours did eric practiced piano this week

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

What expression is equivalent to 42x-56y

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?