Write the explicit formula geometric sequence. 2,8,32,128...
A.(a)n=2(n-1)
B.(a)n=2 multiply by 6(n-1)
C.(a)n=2 multiply by 2(n-1)
D.(a)n=2 multiply by 4(n-1)

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Opposite angles in a parrellelogram are

If a runner who runs at a constant speed of p miles per hour runs a mile in exactly p minutes what is the integer closest to the value p