Find the standard deviation. Round to one more place than the data. 6,5,9, 13,18,7,5,20, 11, 15​

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 i need !

Find the missing factor. write your answer inexponential form.9^2=9^4×

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6