Efetue as adições!
Lembre-se que somar um número positivo é mesmo que somar o número + (+a) = +a e;
Lembre-se que somar um número negativo é mesmo que subtrair o número + (-a) = - a
a) 17 + (-21) = b) -17 + (-21) = c) - 17 + (+21) = d) 17 + (+21) =
e) (-5) + (-19) = f) -8 + (-5) = g) (+3) + (-9) = h) (-12) + (-34) =
i) (+52) + (-63) = j) (-78) + (-221) = l) (+76) + (-91) = m) 17 + (-21) =

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8