Simplify:

3 5/8+2 11/2+4 3/4

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

Josephine has a great garden with and area of 2x2 + x - 6 square feet

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.