How can I tell if the slope on a graph is positive or negative?

Nikita wrote the expression 72 + 26. Bettina wrote the expression 4 (72+26). Which sentence is true about the value of their expressions?

The diameter of a circle is 2 feet. What is the area

What is the circumference of a circle with a radius of 80 inches? (Use 3.14 for pie)

Express $112 for 14 hours as a unit rat

The length of a rectangle is nine inches more than its width. Its area is 850 square inches. Find the width and length of the rectangle.

Find the sum of 2/3 + (-1/3)

An investigator wishes to estimate the proportion of students at a certain university who have violated the honor code. having obtained a random sample of n students, she realizes that asking each, "have you violated the honor code

Write an expression for the verbal phrase: the product of the square of x and seven

What is the slope of the line represented by this equation - 3x+8y=12

What is 5x + (-2) = 6x+4