If T: R^3 --> R^2 is a linear transformation with T(1,0,0) = (1,0), T(0,1,0) = (2,0), T(0,0,1) = (0,1)

calculate T(2,5,5).

A. (10,5) B. (2,0) C. (2,4,5) D. (8,0)

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Julie begins counting backwards from 1000 by 2’s and at the same time tony begins counting forward from 100 by 3’s.   if they count at the same rate, what number will they say at the same time?

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?