Verify associative law i.e., $\left(a\times b\right)\times c=a\times \left(b\times c\right)$ and distributive law i.e., $a\times \left(b+c\right)=\left(a\times b\right)+\left(a\times c\right)$ for the following values of $a, b, c: a=2, b=-3, c=-4$

Verify associative law i.e., $\left(a\times b\right)\times c=a\times \left(b\times c\right)$ and distributive law i.e., $a\times \left(b+c\right)=\left(a\times b\right)+\left(a\times c\right)$ for the following values of $a, b, c: a=-4, b=-5, c=3$

An insect crawls up $5 \mathrm{cm}$ every second on a $60 \mathrm{cm}$ vertical rod and then falls down $2 \mathrm{cm}$ over the next second, How many seconds will it take to climb the rod?

Every floor of a $25$ storey building is $5 \mathrm{m}$ high. If a lift moves $2$ metres every second, how long will it take to move from $3^{\mathrm{rd}}$ floor to ${15}^{\mathrm{th}}$ floor?

Simplify: $\left[-33-\left(-27\right)\right]+\left[88+\left(-82\right)\right]$

If $a=-9$ and $b=-6$, then find $b-a$

Which integer is equal to its additive inverse?

The sum of two integers is $-21$. If one of them is $-53$, find the other integer.