What will come in place of the question mark (?) in the following questions?

48% of 900 + 20% of ? =133 ×4

If 88% of 1110 + 24% of 630 - 3x = 282, then x is equal to:

What is the value of ' x ' in the following equation?
​$$11^2+1.1^2+0.11^2+0.011^2=x$$​​

​$$60\%\text{ of }4500-\frac{9^3\times48}{\sqrt{256}}-20\%\text{ of }95=x$$​. Find the value of x ?

Evaluate:
$$\frac{12\times272\div16+264}{1256\div32-26.25}$$​=?

The value of $$\frac{5}{5+\frac{1}{4-\frac{1}{\frac78}}}+\frac{7}{107}$$​ is:

What should replace '?' in the equation given below?
​$$5\frac{10}{17}\div 7\frac{12}{34}-\frac{3}{25}=(?)^2$$​​

The temperature in a city at 6:00 AM was $$-4^∘$$​ C. During the day, the temperature rose steadily by a certain number of degrees. By 3:00 PM, the temperature reached +$$9^∘$$​ C. What was the total rise in temperature during that time?

Find the square root of 0.00324 .

What is the reciprocal of $$\frac{ 2}{3}$$​?

Which of the following fractions is equivalent to 0.75 ?