Alex bought a guitar pick for 25cents he paid the exact amount so he recieved no change. a)list the combinations of coins that alex could have used. b) what is the least number of coins that alex could have used. c) what is the greatest number of coins that alex could have used. d) could he have paid for the guitar pick using seven coins

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct