Abag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles. gordon selects a marble without looking. what is the probability that he selects a yellow marble or a purple marble?
a.8/15
b.1/15
c.7/15
d.2/45

(a) solve h+2/6 = h-3/4(b) solve the following simultaneous equations. 2x = y + 66x - 2y = 13x = ? y = ?

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?