After spending $43 on groceries and $19 on a book, mrs. groom had $16 left. how much money did mrs. groom have to begin with?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

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?

What is the approximate difference in tenths between √12 and √15?