Answer:
La raíz cuadrada de 721
Step-by-step explanation:
La Segunda Raíz o Raíz Cuadrada del número 721 es 26.8514431642
Esto se comprueba multiplicando 26.8514431642 por si mismo, debe arrojar como resultado 721
o en otro termino 721.9049245737
The Second Root or Square Root of the number 721 is 26.8514431642
This is proven by multiplying 26.8514431642 by itself, it must result in 721
or in another term 721.9049245737
Set the composite results function.

Evaluate f(g(x)) by substituting the value of g into f.

Simplify each term.
Apply the distributive property.
Multiply 4 by 2.
Multiply 2 by 3.
Subtract 5 from 6.

Answer:
32
Step-by-step explanation:
3+4 = 7, 56/7 = 8, 8 * 4 = 32
Scientific notation implies that all the zeros are taken away and replaced with a 10 raised to whatever appropriate power would be necessary to make the number in scientific notation equal to the original number.
In the number 780,000,000, we can see that there are 7 zeros, but the number before the zeros has two digits, so we need to tuck the decimal point in there, because the number has to be between 1 and 10 for math reasons.
7.8 ... but what do we raise it to? We know it has to be 10, but to what power? Well, we just count how many places to the left the decimal point has traveled. From the original number, the decimal point shifted 8 places to the left, so that is the number that we will raise the 10 to.
The final number looks like this:

780,000,000 in scientific notation is <span>

Hope that helped =)</span>
(17-7)*2=weekly allowance
so her weekly allowance is 20