Suppose the diagonals of a parallelogram are both perpendicular and congruent. Which type of special quadrilateral is it? Use the most descriptive name possible.

A. rhombus

B. rectangle

C. square

D. parallelogram

8 more than twice a number d

What is $420 for 15 tickets as a unit rate?

How do you apply properties for powers with the same base

Solve - 4x+2>26 A. x > - 6 B. x > 6 C. x < 6 D. x < - 6

According to the World Health Organization (WHO) Child Growth Standards, the head circumference for boys at birth is normally distributed with a mean of 34.5cm and a standard deviation of 1.3cm.

Nicky has 5 cookies and bill has 4 cookies how much do they have all together

The manager of a theater wants to know whether the majority of its patrons were adults or children. one day 5100 tickets were sold in the receipts totaled 34,599. The adult admission is $8.50 and the children's admission is $5.50.

Is 729 a perfect cube?

Without solving the equation 5x^2+13x-6=0 find the sum of the squares of its roots.

Choose the correct proportions. 12, 14, 6, 7 a) 6:7 = 12:14 b) 6:7 = 14:12 c) 7:6 = 12:14 d) 7:12 = 6:14