JH is tangent to the circle at H. Find mLM. The angles are 78° and 40°; and the arc is 168º. Help me with this question please!

If 1/2+2/5s=s-3/4,what is the value of s? a. s=3/4 b. s=25/12 c. s=-25/12 d. s=-3/4

For what values of x is x2 + 2x = 24 true?

Carl is hanging pictures in his home. there is a space on a wall that has a width of 4 feet. carl has pictures with different widths. which picture width would fit in the space on the wall? a. 46 inches b. 60 inches c. 50 inches d. 54 inches