Climatologists are monitoring the sea surface tempera- ture off the coast of Nigeria. When they average the
monthly temperatures in an attempt to predict the onset
of diseases such as cholera, malaria, and dengue fever,
they can add the daily temperatures in any order. What
mathematical property does this demonstrate?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12