Mr. See weights his grades. Tests are worth 60%, quizzes are worth 25% and homework is 15%. Joey’s test average is an 82, his quiz average is a 77, and his homework average is a 98. What is Joey’s current grade?A. 85.67%B. 83.15%C. 81.4%D. 59.5%

How is working backward similar to solving an equation?

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.