PLZ HELP
the expressions a[8x+7] and 4x+3.5 are equivalent. what is the value of a

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Describe how making an ‘and’ compound sentence effects your solution set

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.