The number of daylight hours on a particular day of the year in Boston, MA is given by the function

H(t) = 3.1sin(

2π

365

t – 1.35) + 12.12, where t is the day of the year.

On which day of the year will Boston get 13.1 hours of daylight?

What is the percent of increase for a population that changed from 438,000 to 561,000

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

Negative 5 1/12 + negative 4 1/4 + 6 3/4