Find the gcf. 12 and 45
a. 180
b. 3
c. 45
d. 12

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?