100 *43560*144= 627,264,000  square inches in `100 acre one pizza = pi*(dia/2)^2= 49 total pizzas = 12801306 per day 12801306*8/24/60/50= est 1200 pizza/sec hamburgers eaten per day

1.25 + 3.75 = 5

move decimal two places to  the left = .298

.10 *34 = \$3.40

light bulb power /1000*Price*hours it is on) =1.00 75/1000*.055227*hours = 1.00 .004* hours 250 hours

you have two equations  x +y = 55   x+4y= 139 substitute the first equation into the second x=y = 55 or x=55-y (55-y) +4y = 139 55+3y= 139 3y= 139-55=64 3y = 64 y =  y=21.3 x=55-21.3 = 33.7      ...

r/19=-15 multiuply each side by 19 19*(r/19)=-15*19 r=-285

8*16=128- that is all.

that is right

30*x+5=8 30x=3 x=,io so, 30 dimes and 6 =8

l=2w-3 p=414 2l+2w=414   2*(2w-3)+2w=414 4w=-6+2w=414 6w=420 w=70 l = 2*70-3=137

(x+13)*3=7x-9  3x+39=7x-9 -4x=-48 x=12

okay - lets break that out  = 100 3/2= = 100 1/2 X 3 = 10*10 *10 = 1000

OKay, solve the equation as follows: 1. Add -2 +1 = -1 2. Add +1 to both sides - so you get -2+x>0 3. Add 2 to both sides and this solves the problem x>2