How many solutions for x does the following equation have?

2(x+4) - 1 - 2x + 7

What is the square root of 45? (step by step working plz)

Jada has a monthly budget for her cell phone bill. last month she spent 120% of her budget, and the bill was 60$. what is jada’s monthly budget

Twelve less than a number is at most 20