91Ó°ÊÓ

Simplify. \(5 \div 0.5+(3.9) 6-(0.7)^{2}\)

Simplify. Give the answer as a decimal. \(3 \frac{1}{4}-6.5\)

approximate the (a) circumference and (b) area of each circle. If measurements are given in fractions, leave answers in fraction form. diameter \(=\frac{3}{4} \mathrm{m}\)

In the following exercises, solve the equation. $$ a+6.2=-1.7 $$

In the following exercises, solve the equation. $$ -1.7 c=8.5 $$

In the following exercises, solve the equation. $$ 0.18 n=5.4 $$

In the following exercises, translate and solve. The quotient of \(y\) and \(-1.7\) is \(-5 .\)

Find the median. $$48,51,46,42,50$$

Find the median. $$65 , 56 , 35 , 34 , 44 , 39 , 55 , 52 , 45$$

Express the probability as both a fraction and a decimal. (Round to three decimal places, if necessary.) Josue is in a book club with 20 members. One member is chosen at random each month to select the next month’s book. Find the probability that Josue will be chosen next month.