Complete the statements to find the measurements of ∠a and ∠b .

Part a)

Part b)

Step-by-step explanation:

Part a) we know that

-----> by supplementary angles

solve for m<a

Part b) we know that

The sum of the internal angles of a triangle must be equal to 180 degrees

so

in this problem

we have

substitute and solve for m<b

therefore

The triangle of the figure is an equilateral triangle ( has three equal angles and three equal sides)

answer: i'm not sure

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!