Please help me I’m stuck. Ik it’s a lot of questions asked but if you know please help!!!

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.