Arwen has half as many pens as Adrienne. Adrienne gives Arwen 3 pens, but still has 6 more than Arwen. How many pens did Arwen have originally?

1. what is the measure of ∠abc? what is the measure of ∠abd?

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.

Aregular pan has a length that is 4/3 the width. the total area of the pan is 432in.2. what is the width of the cake pan?