Bill magee and his wife kathy are best known for what philanthropic act? a. donation of millions of dollars to the victims of the haitian earthquake of 2010 b. negotiations to end apartheid in south africa c. the creation of operation smile, a program that fixes birth defects d. neighborhood restoration projects in the urban center of detroit, michigan

Your answer is D. Hope this helps :)

C. the creation of operation smile, a program that fixes birth defects

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

following type of cultural development caused people to want and buy new products on the market :