The baytown junior students raised $ 2, 500 for charity . the 7th graders raised 2/5 of the total raised. how much money did the 7th gradesrs raised a. $500 b. $1,000 c. $250 d. $ 1,500

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

In the diagram, gef and hef are congruent. what is the value of x

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)