How do photographs help historians learn about the past

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Plz hurry evaluate the expression a+b where a=8 and b=19

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.