How do you write 140.61% as a decimal?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.