In right triangle PQR, ∠P is a right angle, m∠R=58∘, and QR=15. What is the measurement of PQ? If necessary, round your answer to two decimal places, like this: 42.53

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

How are sas and sss used to show that two triangles are congruent?