David canoed 3.78 miles before lunch and 4.20 miles after lunch. How many miles did he travel in total? idk

I'm confused on this could anyone me and show me what i need to do to solve it.

The product of sin 30 degrees and sin 60 degrees is same as the product of

Hurry!me out! m c 8 10 12 gracie's art box has 5 less crayons, c, than three times the number of markers, m. function: c = 3m - 5 complete the table to show how the number of crayons depends on the number of markers. enter answers in order from top to bottom.