Evaluate the expression, or state that the expression is not a real number. \( \sqrt{64} \) Select the correct choice below and, if necessary, fill in the answer box to complete your answer. A. The expression is a real number. \( \sqrt{64}=\square \) B. The expression is not a real number.

Diapers cast \$4/ prekage. How many prokeges did Mark buy if he spent \$16?

lame: he grocer has 173 green apples and 197 red apples. How many apples does he grocer have?

1. Divide \( 18,102 \div 7 \)

The resting heart rate \( \left(H R_{\text {rest }}\right) \) is the number of times a heart beats per minute \( (\mathrm{bpm}) \). An average person's \( H R_{\text {rest }} \) is \( 60-90 \mathrm{bpm} \). Problems can result when a person's \( H R_{\text {rest }} \) is below 60 bpm or above 100 bmp . However, professional athletes and meditators can have \( H R_{\text {rest }} \) as low as 40 bpm due to their hearts' ability to pump blood efficiently. As of 2012 , the world's lowest verified \( H R_{\text {rest }} \) was 27 bpm for Martin Brady of the \( U K \). \( H R_{\text {rest }} \) is rarely found by checking a person's pulse for a full minute. More commonly, the pulse is measured for \( 5,6,10,12 \) or 15 seconds and then multiplied by the appropriate factor of 60 . Question 1 If you were to check Martin Brady's pulse for 5 seconds, how many beats would you expect to count? (assuming his world record rate)

Select all the perfect squares. - \( \sqrt{361} \) - \( \sqrt{224} \) - \( \sqrt{81} \) \( \sqrt{2} \) \( \sqrt{1} \)