What is the coefficient in the expression 5x^2 +3 ?
A. 5
B. X
C. 3
D. 2

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6