Can someone do these for me its math sorry

I'll just help you

to find the slope, it is rise over run, rise/run
y-intercept is where the line crosses the y-axis
slope is positive or negative depending which way it is leaning, if it goes up-to-down from left-to-right that means it is negative, on the other hand, if it goes down-to-up from left-to-right means it is positive

Hope this helps :)

C. definite shape, definite volume. that is a solid.