Describe the error in the work shown below. Find an expression equivalent to 18 + 30. Factors of 18: 1, 2, 3,6,9, 18

Factors of 30:1,2,3,5, 6, 10, 15, 30

18 + 30 = 6(3 + 10)

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.