Answer:
x < 3
Step-by-step explanation:

False
b could be the logarithm of a rational number to the base a. For example,
will be irrational, but π^b = 4, a rational number

to solve for j first you need to cross multiply;
j × 35 = 42 × 55
35j = 2,310
j = 2,310 ÷ 35 (did the inverse operation)
j = 66
Hope that helps :D