7.) Simplify (6 xr)x7

6xrx7

2

Regroup terms.

6x{x}^{7}r6xx7r

3

Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}xaxb=xa+b.

6{x}^{1+7}r6x1+7r

4

Simplify  1+71+7  to  88.

6{x}^{8}r6x8r

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

income. 10x+1300

expenses 3x+(1800+1500)

expenses 3x+3300

to break even:

income = expense,

10x + 1300 = 3x + 3300,

solve for x.

step-by-step explanation:

mark brainliest