If a unit price label has a unit price of 21.5 cents per pound, how much is the total price for an 8 pound package

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

Can someone me and do the problem plz so i can understand it more better

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg