For ∆abc, m∠a=(2x+3)°, m∠b=(x+5)°, and m∠c=(3x+4)°. what is the measure of angle a?

how do you find x?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Need showing work for this problem 56.25 ×25.80

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?