Which expression would be easier simplify if you used the associative property to change the grouping? A. (3/2 + 5/2) + (-1/4)
B. -1/2 + [(5/3) + -(7/3)]
C. 14 + (20 + 80)
D. (27 + 4.5) + 1.5

A

Step-by-step explanation:

A is mental math.

D, first you got add the whole number and the decimal then add the other decimal.

Advice: Do the work that might help you. Also,make me Brainliest.

Thank you

C

Step-by-step explanation:

its C

europa2433

europa2433

step-by-step explanation:

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.