B) the minimum charge of electricity up to 20 units is rs 4 per unit, rs 7.30 per unit
from 21 units to 50 units, rs 8.60 per unit from 51-150 units and rs 9.50 per unit from
151-250 units. if a household consumed 240 units of electricity and the payment was
made within 7 days of meter reading, how much was the cost paid by the household?

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

i dont know

step-by-step explanation:

umm. i dont know