A rectangle has a width of 4.9 cm and an area of 81.9 cm². Which of the following is closest in value to the height of the rectangle? Circle your answer.
16 cm
20 cm
8 cm
25 cm

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}