If ${{2}^{a}}=\sqrt{64}$ and $\frac{b}{a}=3$, evaluate ${{a}^{2}}+{{b}^{2}}$

Simplify: $3x-(p-x)-(r-p).$

Tom will be 25 years old in n years time. If he is 5 years younger than Bade, Find Bade’s present age.

The temperature in a chemical plant was  –5^oC at 2.00am . The temperature fell by 6^oC and then rose again by 7^oC. What was the final temperature?

If $2x+y=10$ and $y\ne 0$ which of the following is not a possible value of x

I am x years old and my brother is 3 years older. How old was my brother last year

$\begin{align}  &\text {Find the LCM of} \\  & {{2}^{3}}\times 3\times {{5}^{2}} \\ & 2\times {{3}^{2}}\times 5 \\ & {{2}^{2}}\times {{3}^{3}}\times 5 \\\end{align}$

If 4y is greater than the sum of y and 3x, by how much is y greater than x

Given that x = 2 and $y=-\frac{1}{4}$, evaluate $\frac{{{x}^{2}}y-2xy}{5}$

If  $p-2g+1=g+3p$ and $p-2=0$ , find g