Hey there, Lilyanaskybesties!
The answer should be equals to 38 by following the following formula
a*b = ab + [tex] \frac{b(b-1)}{2} [/tex]
Let's try to use other numbers following and replace them on the formula.
4 * 5 = 30
So, 4*5 + [tex] \frac{5(5-1)}{2} [/tex] which is 20 + [tex] \frac{20}{2} [/tex] which is 10. So, 20 + 10 equals 30
Now, let's use 8 * 4
8 * 4 + [tex] \frac{4(4-1)}{2} [/tex] which is 6 and 32 + 6 is equal to 38.
I hope this helps.
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