Two interior angles of a triangle measure 50° and 60°. what is the measure of the third interior angle of the triangle?
a. 70°
b. 60°
c. 50°
d. 40°

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

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.