What is ˣ⁵ʸ² ᵒᵛᵉʳ ˣʸ¹/² (picture attached) can someone simplify this?

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11