A piece of hematite contains 72% iron. If the hematite weighed
150g, how much iron would there
be?​

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

What are the domain and range of f(x)= -log5(x+2)