20 points! kara is graphing the equation |x| + |y| = a , where a is a real number.

determine whether each set of real numbers below results in exactly one point on the graph, no points on the graph, or infinitely many points on the graph.

select exactly one point on the graph, no points on the graph, or infinitely many points on the graph for each set of real numbers.

a > 0
a < 0
a = 0

Step-by-step explanation:

a=0 if both x and y are each =0

for all other real values a>0

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98