Solving a word problem

thomas is designing a backdrop for the school play. he sketches out the design on a coordinate grid. the center of the backdrop is a figure graphed with the vertices (–8, 0), (–7, 2), (1, 1) and (0, –6).

how many sides does the figure have?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

What is the value of f(x) = 2.2 for f(-2)?

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?