as the -32 is in bracket so we must look at it first. then the (-) is multiplied with the + outside bracket which is +×(-)=- . so it will be plus i.e. 22-32 and final step subtract it. the answer is -10.
This is not possible for Jane to put the same amount it all depends on how the book fits, how thick it is, how skinny it is and what else is on the shelf.
