Dawn bought a pair of shoes for $90. They were on sale for 40% off. There is 7% sales tax. What is the final cost of the shoes? *

57.78

Step-by-step explanation:

90 -(40%*90)

= 90 -36

=54

Tax =7% *54=3.78

Final cost= 54 +3.78 = 57.78

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: