Which value is 23 x 10,000,000 written using exponent4

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

X2 + y 2 = 36 x + y = 6 solve the system of equations.