Alina has just received 3 video games for her birthday to add to her existing 12 video games. a week later she went to the thrift store and doubled her video games. another week later she bought 5 more games. write a numerical expression with parentheses for the total number of video games alina has now.

The amount of energy it takes to lift a box might be a function of which of the following

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

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?