Marcie subtracted 17 from 58 and then multiplied by the sum of 6 and 8. write the expression she used

Evaluate the expression for the given value of the variable 7a - 4a for a =8

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?