Blair’s new computer cost $5 dollars less than the cost of her old computer. Her new computer cost $709. How much did Blair’s old computer cost?

714

Step-by-step explanation:

let the price of old computer be x

the price of new computer = x - 5

so the equation would be

x - 5 = 709

x = 709 +5

x = 714

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

step-by-step explanation:

(3rd option) - c