milkshake

thx a lot !

$${\mathtt{k}}{\mathtt{\,\small\textbf+\,}}{\mathtt{263.48}} = {\mathtt{381.09}} \Rightarrow {\mathtt{k}} = {\frac{{\mathtt{11\,761}}}{{\mathtt{100}}}} \Rightarrow {\mathtt{k}} = {\mathtt{117.61}}$$

$${\left({\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}\right)}^{{\mathtt{2}}}{\mathtt{\,-\,}}\left({\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{7}}\right) = {\mathtt{50}}$$

$${\mathtt{2}}{\mathtt{\,-\,}}{\frac{{\left(-{\mathtt{3}}\right)}^{{\mathtt{4}}}}{{\mathtt{2}}}}{\mathtt{\,\times\,}}\left(-{\mathtt{1}}\right){\mathtt{\,-\,}}{\mathtt{2}}{\mathtt{\,-\,}}\left({\mathtt{3}}\right) = {\frac{{\mathtt{75}}}{{\mathtt{2}}}} = {\mathtt{37.5}}$$

$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{cos}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{1}}}{{\mathtt{4}}}}\right)} = {\mathtt{75.522\: \!487\: \!814\: \!07^{\circ}}}$$

x=75.52248781

answer is (5/6)*x

expand=>  6*x+4-(10x)^2-15*x+4*x+6

simplify=> -(10*x)^2+5*x+10

(16x)^2 - (25y)^2

so give the answer dude!) anyway i will continue 30-25=5 so in 10 numbers you have 5 difference in 10000 you have (10000/10) = 1000   1000*5=5000

for example the number is A so if you reduce it 1.5 it will be A - A*(1.5/100)

a+b-c+d*8=(a+b-c)+(d*8) i hope that will be helpfull!