The diagonal of a rhombus are 12cm and 16cm. calculate the perimeter of the rhombus.

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?