The expression would be 19x-9. The reason is because if you think about it, it says that there is 9 less than 19x (x would be the unknown number) I hope this helps! ^-^

8 0

3 years ago

Find the missing side

madreJ [45]

$12 \div 3 = 4$

$x = 20 \div 4$

x = 5

3 0

3 years ago

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Your bike lock has 4 digits numbered 0 to 9. Find the total number of possible combinations for the lock.

BabaBlast [244]

There are <span>262,144 possible combinations

</span> $n^r$
$n = 4$
$r = 9$ <span>
</span>

6 0

3 years ago

A pair of sneakers cost the store $65. They mark them up by 40%. What is the selling price of the sneakers?

nadezda [96]

The selling price is $91

5 0

3 years ago

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