Please help me. brainIiest and high points :C
look at the second image for the graph thingy

$10.50

Step-by-step explanation:

From the graph, we can see that 2 notebooks cost $3. One notebook would be half the price, which is $1.5. Now, 7 notebooks is 7 times more than 1 notebook. This means 7 notebooks would cost 7 times as much, which is

1.5 x 7 or $10.50.

*This solution depends on the fact that zero notebooks cost 0 dollars.

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step-by-step explanation:

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.