How many terms are in the expression below? 2x + 3y - 4xy - 10 question 1 options:

a. 2
b.3
c.4
d.5

The tile along the edge of a triangular community pool needs to be replaced? ?

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?

Which situation is an example of an observational study?