Invention cost three dollars for a pack of eight. Laura gives the cashier $20 to buy inventions and gets $11 and change. How many packs of inventions does Laura by?

Add the polynomials (-5x2+8x) + (2x2-3x+7) -3x^2+5x+7 7x^2+8x+11 -7x^2+11x+7

Suppose a cafeteria has 4 different sandwiches and 6 different drinks. If you select one sandwhich and one drink, how many different lunches can you choose?

F (x) = 3^x; find f (0)

at 10am han and taylor both started running toward each other from opposite ends 10 mile path along a river. Han runs at a pace of 12 minutes per mile. taylor runs at a pace of 15 minutes per mile. how far han run after a half hour?

9ab + 12ax - 6b + 7x

What are zeros of f (x) = (x-3) (x+8) ?

Find the missing measures for the rectangle. l = _?_ w = 2 cm A = _?_ P = 25 cm A) 12.5 cm; 25 cm2 B) 10.5 cm; 21 cm2 C) 12.5 cm; 21 cm2 D) 10.5 cm; 25 cm2

A lottery offers two options for the prize. Option A: $1000 a week for life. Option B: $600 000 in one lump sum. Which option would the winner choose if s/he expects to live for another 50 years?

Write the answer in standard form on the line. 100,000 less than five hundred sixty thousand, three hundred thirteen is

Solve the inequality. -6 < 2 x - 4 < 4 A) - 5 < x < 0 B) - 4 < x < 6 C) - 1 < x < 4 D) - 12 < x < - 2