AB is tangent to circle O at A. If AO = 30 and BC = 48, what is AB? A. 84 B. 78 C. 76 D. 72

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Which two fractions are equivalent to 24/84? 6/42 and 2/7 6/21 and 2/6 12/42 and 3/7 12/42 and 2/7

Y= a(x-3)squared-1 what is the value of a