Oliver read for 450450450 minutes this month. his goal is to read for 10\%10%10, percent more minutes next month.

Oliver's goal is to read 45 minutes more next month

Step-by-step explanation:

Firstly, we need to know how much in minutes is the of :

This means Oliver wants to read 45 minutes more next month. If we add this number to the 450 minutes he read this month, we have a total of 495 minutes.

Concave and Hexagon.

Step-by-step explanation: In the given figure we have one angle is greater than 180 degrees.

A polygon has an angle between 180 to 360 is called a concave polygon.

Therefor given polygon is a concave polygon.

Also the given polygon has six sides.

A polygon with six sides is a hexagon.