Adelia had 4 dollars. she found 50 cents and then bought a snack. she ended up with 6 quarters. which expression equals the number of dollars adelia spent on the snack?

Trigonometry help asap

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]