Which expressions are equivalent to -6+3(2+(-4t))?

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table