A square made of add, subtract, multiply and divide signs.

Simple Math Operation Signs

An open glass bottle with a blank label, filled about 3/4ths of the way and releasing small bubbles from the neck.

Open Glass Bottle With Bubbles

A slider panel with three parallel sliders on different settings and three different shapes next to the bars: a circle, an oval and a square.

A woman with her hair in a bun sitting on a stool, holding an open book and showing it to two children sitting on the ground.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.