Evaluating Expressions Use the order of operations to help you solve,
56 49X2
100 + 5*4
8 X 12 - 6

PLS HELP ASAP

What is the missing step in this proof ?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.