Solving liner equations 2×- 19=30

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show