Write an equation and solve for the variable indicated?

9. ten plus eight times a number a equals eleven times another number d minus six. solve for a.

10. three fourths of a number p less two is five sixths of another number r plus five. solve for r

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Select the lengths in centimeters that would form a right triangle

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.