What is the product 7x(-5)x(-3)x(-8) a -840 b -105 c 105 d 840 i have been working on it

-840

Step-by-step explanation:

Hey their so were trying to multiply so what I would multiplayer first is 3 and 8 which gives you 24 then you would multiply 5 and 3 which is 15 then multiply 24 and 7 which is 32 then multiply 32 and 15 which gives you -840 you must have 3 negatives and 1 positive to make a answer negative hope this helps

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2