Aiden calculated the area of triangle QRS below by finding half the product of 1.5 and 1.1. Triangle Q R S has a base of 5.4 and a height of 1.1. Another side has a length of 1.5. What error did Aiden make? Aiden should have found half the product of 1.1 and 1.2 because the 1.5 line is not a dotted line in the figure. Aiden should have found half the product of 1.1 and 5.4 because the 1.5 line is not perpendicular to the 1.1 line. Aiden should have found half the product of 1.5 and 1.2 because the 1.1 line is not perpendicular to the 1.5 line. Aiden should have found half the product of 1.5 and 5.4 because the 1.1 line is a dotted line and not part of the figure.

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect