the cost of the book is twice the cost of the pen if the both item cost 36 calculate that cost for each​

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Bring the fraction a/a-4 to a denominator of 16-a^2

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent