Pls help me El 25% de 400 ÷ 10 X 9 el 50%=
El 20% de 400 X 6 el 10% el 50% =
El 50% de 1000 el 20% ÷ 10 el 10% =
90 X 6 el 10% el 50% ÷ 9 al³ =
El 75% de 40 EL 10% al³ - 7 EL 25% =
12 X 12 EL 25% ÷ 6 X 20 el 10% =
15 x 15 – 25 el 20% el 50% ÷ 20 =
2 al³ X 40 + 320 + 60 ÷ 100 =
10 al² X 9 ÷ 3 el 20% ÷ 12 =
3 X 7 + 21 ÷ 3 ÷ 7 al cubo =
Pl help me in this

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

Plz 20 points polynomials 1: subtract and simplify (–y^2 – 4y – 8) – (–4y^2 – 6y + 3) 2: multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2 3: multiply and simplify (x – 4) (x2 – 5x – 6)