Are the expressions - 18 - 1/2(50z + 60) – 35z and 6(–12 - 10z + 4) both equivalent to 12(-5z - 4)? Show your work.​

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

One integer is 5 more than another. their product is 104. find the integers

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?