A store sells gift cards in preset amounts. You can purchase gift cards for either $10 or $25. You have $400 to spend on them. Write an equation in standard form to represent the situation.

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?