Hey, you are not allowed to do 2 questions a post. We don't do your homework for you, have you tried solving these your own?
(1.) Take the logarithm of both sides of the equation to remove the variable from the exponent.
Exact Form:
x=ln(12) / ln(4)
Decimal Form:
x=1.79248125…
(2.)
Take the logarithm of both sides of the equation to remove the variable from the exponent.
Exact Form:
x=−ln(0.01) /ln(1.5)
Decimal Form:
x=11.35774717