Class A has 12 pupils and class B has 13 pupils. Both classes sit the same maths test.
The mean score for class A is 72.
The mean score for both classes is 47.
What is the mean score (rounded to 2 DP) in the maths test for class B?

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

nswer: a   y-axis

step-by-step explanation:

if she was to only spend a dollar she can get 1lb

step-by-step explanation: