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what is the measure of < adc?
what is the measure of arc ae?

I'm not completely sure about this answer since it's been 2 months since I've done geometry but to find the measure of <ADC, it's half of the arc measure of arc AE. (48+68)/2=58 so the measure of <ADC is 58 degrees.
The measure of arc AE is 68 because it is the measure of <ABE doubled.

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.