The ant is 5 micrograms. the giraffe is 1,000 kilograms. about how many times is the giraffe heavier than the ant? express your answer in scientific notation. (hint: 1 gram = 1,000,000 micrograms.)

For what value of (y) is 3^3/3^y =1/9

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

I’m really confused and need your assist me with this question i’ve never been taught