At Westonci.ca, we provide reliable answers to your questions from a community of experts. Start exploring today! Get the answers you need quickly and accurately from a dedicated community of experts on our Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

which math expression means "45 less than an unknown number"?

A. x- 45
B. x + 45
C. 45 ÷ x
D. x * 45