Pls answer me this all question correctly pls I beg you pls friends pls pls pls pls​

a) 21 b) 0.02 (4 a)

Step-by-step explanation:

a] 12×5+2 =62 - 6×8+7=55 (making all the improper fractions into mix)

therefore 62-55= 7

4)a 7×4 and the denominator 9 x 15 (just multiply both the numerators and both the denominator. the rest ill write it down.

i hope you understood, thankyou ❤️

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

b) well because you get well