Ineed 3 more questions done on this page numbers through 43-45

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?

What is the slope of the line? a. -5/2 b.2/5 c. 5/2 d.7/2