Remove parentheses and simplify.
8h + 3k - 7(7h - 5k)

-41h+38k

Step-by-step explanation: -7×7h= -49h

-7×-5k= +35 basically just using the distributive property

Combine like terms: -49h+8h= -41h 3k+35k=38k

You can't combine -41h and 38k because they are not like terms. So, the expression simplifies to -41h+38k or 38k-41h

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.