Answer:
-320 i guess
Step-by-step explanation:
51*-2*3-21+7=-320
Answer:
m∠A + m∠B = 155
Step-by-step explanation:
ABC is an isosceles triangle that has a 130° angle at vertex B
then
m∠A = (180 - 130)/2 = 50/2 = 25 = m∠C
then
m∠A = m∠C = 25°
Yu add the products of the two numbers by 7