The perimeter of a triangle is 51 cm. The longest side is twice the length of the shortest side. The third side is 3 cm longer than the shortest side. How long is each
side? Write an equation that represents the problem and then solve it.

Which expression is equivalent to sq-80

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%

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.