Ira's collage must include a photo of himself as a baby, a toddler, an older child, and a current photo. he has four baby photos, two toddler photos, seven older child photos, and three current photos to choose from. how many ways can ira make his collage?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.