The half-life of a certain radioactive material is 10 hours. An initial amount of the material has a mass of 75 kg. Find how long it will take until there is 15 kg of the
radioactive material remaining.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69