Does anyone know this?

133

Step-by-step explanation:

Substended angle theorem, therefore c=43 as it will be substended. When a+b= 90, due to the tangent theorem. Therefore 90+43 = 133.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

b mark me branliest thx

step-by-step explanation: