I NEED NORE HELP BESTIES. AND THE ANSWER IS NOT 3 IG 30 POINTS AND BRAINLEIST​

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.