A guy wire supports an energy- producing windmill as shown here. If angle A is 129 degree , what is the measure of angle B?

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

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