The list below shows the different choices of pizza

at the local pizza shop:

• Pepperoni: 7

• supreme: 4

• cheese: 6

• Hawaiian: 3

Based on these results, if 180 pizzas were sold, then

how many could be expected to be cheese?

16 or 17 percent.

Step-by-step explanation:

6 out of 20 is 30% 30% of 180 is .166666667

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24