Factorise 2a^2-50b^2​

Is a short-term risk associated with tobacco use. a. lung cancer b. heart disease c. stroke d. coughing

Which of these is not related to the teeth? a. chymob. pulpc. enamold. dentin

There are two main levels of responsibility related to fitness and fire apparatus operations and preventing injuries and line of duty deaths. the first level involves personal responsibility. the second level involves