Question

the expression
https://webwork2.uncc.edu/webwork2_files/tmp/equations/b6/12a9a2a3413d1ed58ca21d69e8e9621.png

equals https://webwork2.uncc.edu/webwork2_files/tmp/equations/ed/6f60de7807b65fef20c785d0c73cad1.png

where r, the exponent of h, is: ________
and t, the exponent of s, is: _______
and k, the leading coefficient is: 5 (the only one i got right was this one...ive entered every number, 0-9 and even in negatives.. i can't figure out this problem.. :/