hi! i was wondering if i could have some help and maybe someone do 2 and another do 2 idk but thank u sm

1) 5   2) 7    3) 9    4) 8

Step-by-step explanation:

you add and subtract the numbers, for example, number 1, the total is 9 and it shows 4 so 5. Or 3,  K to I is 3 and 11 (the total) minus 3 equals 8, plus the 1 so 9.   Hope this helps! Have a good day! :)  

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.