Sammi practiced piano for 23 minutes on Monday, 37 minutes on Tuesday and 42 minutes on Thursday. Her piano teacher wants to know about how many minutes she spent practicing total. Which of these shows how she can estimate the answer by rounding the addends?

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x