What is 645 rounded to the nearest tenth

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Problem situation: caren is making rice and beans. she can spend no more than $10 on ingredients. she buys one bag of rice for $4.99. beans cost $0.74 per pound. how many pounds of beans, x, can she buy? inequality that represents this situation: 10≥4.99+0.74x drag each number to show if it is a solution to both the inequality and the problem situation, to the inequality only, or if it is not a solution.

What is the measure of sty in oo below? 130 310 230 50