The watson family has arrived in alabama. momma started the trip with $120 for gas. she spent 54.75 on the trip down. how much does momma have left?

65.25

Step-by-step explanation:

120-54.75 all you have to do is subtract the amount that she spent from the amount at the beginning of the trip

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

-2 is the right