Mary went to the store and bought cheese for $5.39,milk for $2.78,and bread for $3.55.what was mary's total purchase cost rounded to the nearest dollar? explain how you got your answer.

12$

Step-by-step explanation:

to get the total cost you need to add all the purchases together 5.39+2.78+3.55=11.72 since you need to round to the nearest dollar it is 12 because it is above 11.50

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)