A line is perpendicular to y = -1/2x - 1 and intersects the point (6,9).
What is the equation of this
perpendicular line?
y = [?]x + [ ]

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall