I think it's a^2 b^2 + 6ab + 9
1.) You have 12 toppings. You choose one topping--that leaves you with 11 toppings. You choose another--that leaves 10. 12×11×10 = 1,320.
Multiply 1,320 topping choices by 6 cheeses to get 7,920 total combinations.
2.) (Though I'm less sure of these)
CDs: 6×5×4×3×2 = 720
Cassettes: 5×4 = 20
DVDs: 8×7×6×5 = 1680
Answer:
$25.56
Step-by-step explanation:
we are not told how much she spent for her lunch.
35x26 that should give you your answer and then 3x4 and then add your solutions together to get your answer
67/100 is approximately 2/3 and 515 is approximately 510 so D. 2/3*510
