Peter sent a motorized toy boat 21 ft downstream in 3 min. Jason sent the boat back upstream to Peter in 7 min. How fast did the boat travel in still water? How fast was the current moving?

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.