De 340 personas encuestadas para saber si tienen smartphone, laptop o tablet, 263 tienen smartphone, 228 tienen laptop,49 tienen tablet, 198 tienen smartphone y laptop, 20 tienen smartphone y tablet,
12 tienen laptop y tablety 4 tienen los 3 dispositivos.
a) ¿Cuántas personas no tienen ninguno de los dispositivos?
b) ¿Cuántos solo tienen laptop?
c) ¿Cuántos tienen smartphone y tablet, pero no laptop?

Which choice represents the sample space ,s for this event

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f