Use elimination to solve and match each system of equations to the correct solution. 2x-9y=-51
2x-3y=-9
I’ll mark brainliest to the first answer I get

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Factor this polynomial completely x^2-64

What is the total surface area of this square pyramid?