Me. ive tried all of them, none of them give me the right answer when i do it.

what is the solution to this equation?
16x-10x+9 = 99-30

a) x=11
b) x=12
c) x=10
d) x=13

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

Write an equation in standard form of the line that passes through the point and has the given slope. ( -2, 4) ; m = -6which of the following best describes the technique used to graph the equation using the slope and y-intercept? y = 5x + 10write the standard form of the equation of the line through the given point with the given slope. point , 4); slope -3/2

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?