The mass of an object is x^{12} grams. its volume is x^4 cm^3. what is the objects density?

Can someone check my answer? you : )

Write the equation in logarithmic form e^x=403.429

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years