Abox contains 5 plain pencils and 7 pens. a second box contains 4 color pencils and 4
crayons. one item from each box is chosen at random. what is the probability that a pen from the first box and a crayon from the second box are selected?
write your answer as a fraction in simplest form.

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)