The mean is 100 and the standard deviation is 15. What is the percentile rank for each of the following scores? 1) 130
2) 145
3) 85
4) 70

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

Which graph represents the parent function of y=(x+2)(x-2)