Um terreno retangular tem 8,4 m por 15 m e está sendo gramado. Sabendo que um quilo de semente de grama é suficiente para gramar 3 m² de terreno, quantos quilos de semente de grama são necessários para gramar o terreno todo? * 1 ponto a) 40 kg b) 42 kg c) 45 kg d) 47 kg

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

answer: correct

step-by-step explanation:

the furthest the dog can be is 508 meters away from the house, and the closest he can be is 492 meters away from the house.

all of the measures need to be converted to the same measure; such as inches. if you do that it is easy to determine which is the longest, 2500 mm which is approximately 97.5 inches.