How many lines of symmetry does a regular quadrilateral have? A. 4
B. 5
C. 6
D. 7

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

What describes horizontal cross section of the right rectangle 6m 8m 5m

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=