3×x−1 ​
−
2
×+8
​
−1=
2
1
​
×(
2
x+8
​
−
5
x+5
​
)

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?