Country a produces about nine times the amount of diamonds in carats produced in country b. if the total produced in both is 40,000,000 carats, find the amount produced in each country.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

See attachment below and find the equivalent of tan(∠qsr)