Cobalt-60 has a half-life of about 5 years.

how many grams of a 300 g sample will remain after 20 years?

a. 0.0625 g

b. 9.375 g

c. 18.75 g

d. 37.5 g

Me find the missing dimension of a triangle height: 7 in., area: 21^2

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!

Find the measure of angle c in the following triangle.