You have the cards numbered 1-10 in front of you. Each time you select a card, it is returned. What is the probability of selecting a 3 and then an even number

Let d1 be the diameter of the moon and d2 and be the diameter of the earth.Let r1 be the radius of the moon and r2 be the radius of the earth.

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answer4 to the second power is 16

and 4 to the third power is 64,

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system