Let a, b,c be 3 positive real numbers satisfying a. b.c=1. Prove that (a+b)(b+c)(c+a) >= 4(a+b+c-1)

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!