Johnny’s has a total of 160 minutes to cut the grass, play basketball, and do homework. He spent x minutes doing homework, 3(x+4) minutes cutting the grass, and 40 minutes playing basketball. How much time did Johnny spend doing homework?

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

Find the values of the variables and the lengths of the sides of this kite.