The area of the circle is equal to the area of the polygon
The option formatting isn't very clear, anyway: given a number x, negative 3 times that number is -3x. If this has to be at least 57, it means that -3x must be greater than or equal to 57:

Dividing both sides by -3 solves the equation, but we have to switch the inequality sign because we're dividing by a negative number:

Answer:
Constants are the terms in the algebraic expression that contain only numbers. That is, they're the terms without variables. We call them constants because their value never changes, since there are no variables in the term that can change its value.
An algebraic expression is one or more algebraic terms in a phrase. It can include variables, constants, and operating symbols, such as plus and minus signs.
Step-by-step explanation:
Answer:17.9
Step-by-step explanation: