Pelosi uses a spool if wire to make 15 necklaces. at this rate, how many spoils of the same size would he use to make 50 necklaces?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2