A number decreased by half of the number is four. Find the number.

Write the sum of the numerical coefficient of each term of the following algebraic expression.

$2p^3-5p^2+7$

The coefficient of $\mathrm{m}$ is _____.

Identify the terms, their coefficients for the following expression

$x^2+x+1$

Write down the terms and factors of the following algebraic expression using the tree diagram.

$2q-3p+4r$

Identify terms which contain $x$ and give the coefficient of $x$.

$7x+x{y}^2$

Write the sum of the numerical coefficients of each term in $2a^2+11b^2-9c^2$.

Identify the terms, their coefficients for the following expression

$7x^{2}yz-5xy$

Identify the terms, their coefficients for the following expressions:

$0.2x-0.3xy+0.5y$

Write down the terms and factors of the following algebraic expression using the tree diagram.

${\mathrm{ax}}^2+\mathrm{bx}+\mathrm{c}$

Identify the terms, their coefficients for the following expression.

$5\mathrm{x}\mathrm{y}{\mathrm{z}}^2–3\mathrm{z}\mathrm{y}$

Write down the terms and factors of the following algebraic expression using the tree diagram.

$8a^2{b}^{2}c$

Write the sum of the numerical coefficient of each term of the following algebraic expression.

Identify the terms, their coefficients for the following expression

$3x^2{y}^2-5x^2{y}^2{z}^2+z^2$

Identify the terms and their factors in the following expression. Show the terms and factors by a tree diagram.

$y-y^3$

Take $10$ numbers as shown below:

$a, b, \left(a+b\right), \left(a+2b\right), \left(2a+3b\right), \left(3a+5b\right), \left(5a+8b\right), \left(8a+13b\right), \left(13a+21b\right)$ and $\left(21a+34b\right)$

Sum of all these numbers $=11\left(5a+8b\right)=11\times 7^{\mathrm{th}}$ number

Taking $a=8, b=13$; write the $10$ numbers and verify that sum of all these numbers $=11\times 7^{\mathrm{th}}$ number.