Mrs. Simpson donated a carton of pencils for each of the 35 classes at lancet elementary school. Each carton holds 64 pence. Which is the best estimate for the number of pencils Mrs. Simpson donated?

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?