Mike built 1/2 of his tree house on Saturday. He completed another 1/4 on Sunday. How much of the tree house was left to build?

Will give brainliest! aubrey was offered a job that paid a salary of $45,000 in its first year. the salary was set to increase by 2% per year every year. if aubrey worked at the job for 20 years, what was the total amount of money earned over the 20 years, to the nearest whole number?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.