Need asap, will give 5 stars and brainliest to whom ever correct

What is the difference between regular convex and concave polygons

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

The price of a lawn mower is x dollars. the store is having a 75% end of summer clearance sale. which expression can be used to find the clearance price of the mower? a) .25x b) .75x c) x - .25(75) d) x + .25(75)