What are the coordinates of the midpoint of the line segment with endpoints a (-12,3) and b (8,-4)? 10, -0.5) (10, 4.5) (-2,4.5) (-2, -0.5)

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?