11 Given (4 + 5x) + 9x = 4 + (5x + 9x) which conclusion is true? A The expressions are equivalent.
B The expressions are not equivalent.
C It cannot be determined if the expressions are equivalent.
D The expressions are not equivalent.

John bought 2 horses at rs 20000 each

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?