Hola me ayudan con mi tarea porfavor, son operaciones combinadas a) 3 x 5 (18 : 6) + 2 x 3
b) 5 + 3 - 4 + ( 6 x 7) - (18 : 3)
c) (72 : 9) + 3 - 5 + (4 x 5)
d) 100 - 52 - (56 : 7) + 13
e) 6 - 4 x (54 : 6) + 18 - (2 x 3)
f) 7 x (48 : 8) + (27 : 3) - 5 x 2

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.