$6.89 per pound for salmon OR $3.50 for 8 ounces (half a pound) of salmon

Use sigma notation to represent the following series for 9 terms.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

What is the area of a triangle with a base of 7x and height of 8x expressed as a monomial? question 5 options: 1x 15x2 28x2 56x2