Which equation represents a line which is perpendicular to the line
7x + 3y = -18?

Find cot x if sin x cot x csc x = √2

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

Alarger number is double the sum of a smaller number. the larger number is 2 less than 3 times the smaller number. if y represents the larger number and x represents the smaller number, which equations model the situation