Margo places 6 pennies and 4 nickels in a jar. For the experiment, she
selects a penny, replaces it, and
selects another penny. If Margo
repeats the experiment 100 times,
how many times can she expect to
select two pennies ?

if i put something wrong your not gonna like it so rather not say nothing.

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation:

n=1.75+1.75

step-by-step explanation:

3.5/2=1.75