1 a. 52% of 210 1 b. 35% of 500
2 a. 56% of 838
2 b. 88% of 915
3 a. 28% of 866
3 b. 69% of 49
4 a.
50% of 780
4b. 85% of 994

hope these helps

Step-by-step explanation:

1 a. 52% of 210= 109.2

1 b. 35% of 500=175

2 a. 56% of 838=469.28

2 b. 88% of 915=805.2

3 a. 28% of 866=242.48

3 b. 69% of 49=33.81

4 a.

50% of 780=390

4b. 85% of 994=844.9 round of 845

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1