12222220 times 50 +60-80times 30000005

1.1e+16

Step-by-step explanation:

I did:

12222220 times 50 +60-80times 30000005

12222220*(50+60-80)*30000005

(50+60-80): (50+60)-80; 110-80=30

12222220*30=366666600

366666600*30000005

=1.1e+16

I hope this is correct

-1788889340

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²