Add the two expressions 14.2x + 3 and 2.5x - 6

An unknown number of kids and buses are getting assigned. when assigning 4 kids to each bus, there are 2 kids that aren't placed in a bus. when assigning 8 kids to each bus, there are 2 empty buses. how many total kids are there?

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries