F(x) =2x^2+x-4 find f(-10)

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

X+y=-4 x-y=2 use elimination with adding and subtraction