Abasket with 12 apples has a mass of 3105 g the same basket with seven apples has a mass of 1980 g each apple has the same mass what is the mass of the basket?

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Acircle has a circumference of 7.850 units. what is its radius?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25