What is the number pattern from 10 to 30 to 90 to ? and ? to ?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.