Answer:
For the first question we are given
and to solve for k that means that we will need to divide 5 from both sides. This would remove the 5 from the left side and that would end up with us dividing 5 from 39 giving us
.
wouldn't work because that doesn't fulfill the expression
For the second question we are given
and to solve for k that means that we need to multiply both sides by 2. This would remove the 2 in the fraction from the left side and that would end up with us multiplying 4 by 2 and giving us
.
would work because we have that k is less than or equal to 8 including 8.
Hope this helps! Let me know if you have any questions