Which of the following are geometric sequences? first option: 3, 6, 9, 12, 15, 18 second option: 10, 5, 2.5, 1.25, 0.625, 0.3125 third option: 1, 3, 9, 27, 81 fourth option: 5, 10, 20, 40, 80, 160

Which expression will have the same sum as 3_8 + 1/4?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?