How many regular triangles meet at a vertex to form a regular tessellation?
a. 2
b. 3
c. 4
d. 6

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.