Determine whether the vectors u and v are parallel, orthogonal, or neither.
u = < 10,0> , v = < 0,-9>

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)